S.H.I.E.L.D. built the Triskelion (with underwater facilities) not in Arlington or in Maryland, they built the massive headquarters right on Theodore Roosevelt Island, overlooking the Lincoln Memorial, and by extension the National Mall of Washington, D.C. S.H.I.E.L.D. convinced the United States government to not only let them build on a national park, but in full view of one of the most prized monuments itself. That takes some serious clout.
Picture if you will; Cap's on an elevator as it repeatedly stops and group after group of S.H.I.E.L.D. agents get on — all big, beefy ones such as Brock Rumlow. Then Cap notices one is sweating with panic and realizes that they're planning to attack him. When three more great big mooks crowd in, the look on his face is identical to when that movie theater heckler back in TFA wouldn't shut up; "The day's rotten enough, and now there's going to be a big stupid fight. Why can't we all just get along?" He sighs and says;
It's also awesome in that it's more than a boast, warning, or threat. It's also a promise and an offer that pretty much only Captain America or Superman could get away with saying and still sound sincere: "If you don't want to do this, you can leave now. No hard feelings." Nine to one, in a claustrophobically small room with floor-to-ceiling windows overlooking a twenty-story drop. They're all armed as they please, while he can't even draw his shield. He still feels it only polite to literally tell them, "Okay guys, take the first swing."
Batroc the Leaper.
The fact that he is played by Georges St-Pierre, who is a multi-division MMA champion and is frequently cited as one of the greatest fighters of all time.
Captain America's list of people who have challenged him in a fight include: a Nazi with the same serum as Cap flowing through his veins, his Brainwashed and Crazy cyborg ex-sidekick, a magical alien prince who can go toe-to-toe with Thor, and... a pirate. Batroc is thus far the only unaugmented human that can gain ground on Captain America, unarmed. He even seems unimpressed with Captain America for a moment.
He doesn't even have to fight Captain America. He successfully avoids the Captain's initial attack, and his escape at the end of the rescue mission proves he could run if he wanted to. But he stays behind, just because Captain America is a Worthy Opponent. The way Captain America puts his shield away, gives the indication he considers Batroc a worthy opponent too.
As it turns out, he was hired for the job by Nick Fury. Fury trusts him to do his dirty work. He's like S.H.I.E.L.D. black ops. That gives an indication of just how impressive Batroc's skills are.
The Winter Soldier, unsurprisingly, is full of these.
His entrance: Nick Fury has just escaped from dozens of submachine gunwielding police officers with a fractured arm and seems to be making good on his escape. Then, standing right in front of him, cool as a cucumber, the Soldier. Who fires a strange bomblet that sticks to the bottom of his car, blowing it up into the air, then casually steps out of the way as a couple of tons of burning SUV go flying past.
Catching Cap's shield, one-handed, as it's thrown at him from behind. And then throwing it back with enough force that when Steve catches it, he can't stop it from pushing on enough to punch him in the gut and knock the wind out of him.
Speaking of force, there's Cap's chase after the Winter Soldier, with him showing us how strong a Super Soldier is by busting down doorways. That's right; at full speed, he charges (shield-first) through doorways (probably locked) hard enough that he knocks them off their hinges, no less than twice, and without appreciably slowing to boot. Not mention jumping from his apartment through his window and smashing through another into the building Winter Soldier is at and leaving a large dent in one of the walls with an accidental shield bash.
Curbstomping the S.H.I.E.L.D. pilots and flight crews who were about to help Captain America. In just a few minutes, he takes out S.H.I.E.L.D.'s ability to provide Gunship Rescue, destroying pretty much every available Quinjet on the flightline.
Special mention must go to the time when he blocks gunfire with his metal arm, one-shots the guy firing on him with his normal arm, then proceeds to kick the guy next to him and send him flying, showing that he is more than just his metal arm.
Other miscellaneous feats include outrunning Captain America, punching his shield so hard that Cap feels the impact,note note that Steve's shield absorbs most vibrations completely ripping the steering wheel out of a car, and then leaping to another car while both are driving.
Falcon firing Guns Akimbo at a Quinjet, backflipping off the Helicarrier and activating his wings on the way down, followed by an aerial chase.
Cap leaping out of a Quinjet, without a parachute. Judging by Rumlow's reaction, it's not the first time he's done it.
Black Widow surviving a fall from a crashing car by leaping off a bridge, grappling it, then hitting the ground running.
Giving the woman more credit where it's due for this scene: right after that bit of awesome, she then uses the Winter Soldier's shadow to pinpoint his position and accurately shoot out his Sinister Shades. Note that before this, the Winter Soldier had been killing with mechanical economy of movement and absence of expression, but when Natasha manages that little feat, he speeds up. She did the impossible and got him mad.
Addendum: Nat shoots out his goggles. The lens is broken. She uses his shadow to pinpoint his location and shoots him in the eye. If the Soldier hadn't been wearing goggles, he'd be finished. If she'd hit him a little higher and gotten a headshot, the movie would have ended right then and there... hell, there wouldn't be a movie! Natasha comes within a fraction of an inch of killing the Winter Soldier. Using his shadow.
The Winter Soldier doesn't even seem fazed by it. He comes pretty close to killing her, with his bare hands.
Sam makes his entrance into the bridge fight by taking out a HYDRA machine-gunner with nothing more than a combat knife. In a matter of seconds he catches the guy by surprise, punches him in the face, cuts through his rifle strap and throat and punches him off the bridge—and then he takes up the guy's rifle and starts providing cover fire. Oh, and during the whole mess he somehow manages to re-don his jetpack, just in time to save Steve's life.
Steve vs. a S.H.I.E.L.D. Quinjet. Steve wins.
Falcon vs. a S.H.I.E.L.D. helicarrier. Falcon wins.
The initial raid on the hijacked boat is pretty damned impressive on Steve's part, with him blazing across the ship and taking out pirates like they're cardboard cut-outs.
Also note that other than Steve, Natasha is the only other operative who goes in solo against the terrorists. She doesn't have Super Strength, but she mops the floor with all the soldiers she comes up against.
Black Widow holding her own against the Winter Soldier. She manages to trick him with a clever sound diversion, bind him with a wire and briefly shock the systems in his bionic arm—all within seconds of each other. Sure, she still gets shot for her troubles, but she puts up one hell of a fight. Notable, since the only other person who gives him any kind of issue at all is the Cap himself.
Maria Hill's rescue of Steve, Natasha & Sam from "S.H.I.E.L.D." custody.
The ambush of Nick Fury's car. The way the HYDRA operatives—disguised as D.C. cops—first box in Fury's car, preventing him from escaping, and then cops with submachine guns and assault rifles put up a withering barrage of fire to destroy his SUV's armor. Then the SWAT team deploys a tripod-mounted pneumatic battering ram to break through the armored glass. And then Fury with a broken arm, and nerves of steel, waits until the glass is almost broken through, then breaks out a machine gun and unloads on his attackers, killing most of them, and expertly employs Car Fu against all of them in his escape. Then he shakes off the remaining "cops" after a hectic car chase in a really impressive way: with the two police cars sandwiching him between them, Fury sees they are approaching a red light and slams on the brake pedal, while the two squad cars continue on and are promptly clobbered by a box rental truck. Until the Winter Soldier shows up and one-shots his SUV... and Fury still manages to escape! This guy isn't the Director of S.H.I.E.L.D. for nothing.
Steve giving a Rousing Speech to S.H.I.E.L.D. revealing how HYDRA has infiltrated them, and asking them to sacrifice themselves for freedom. Which they do.
Steve Rogers: Attention all S.H.I.E.L.D agents, this is Steve Rogers. You've heard a lot about me over the last few days; some of you were even ordered to hunt me down. But I think it's time you know the truth. S.H.I.E.L.D is not what we thought it was; it's been taken over by HYDRA. Alexander Pierce is their leader; the S.T.R.I.K.E and Insight crew are HYDRA as well. I don't know how many more, but I know they're in the building. They could be standing right next to you. They almost have what they want; absolute control. They shot Nick Fury, and it won't end there. If you launch those Helicarriers today, HYDRA will be able to kill anyone that stands in their way...unless we stop them. I know I'm asking a lot, but the price of freedom is high; it always has been. And it's a price I'm willing to pay. And if I'm the only one, then so be it. But I'm willing to bet I'm not.
Sharon and an unnamed S.H.I.E.L.D. agent standing up to Rumlow as the film begins to hit the final stretch. She was also the first person to question the orders to go after Captain America.
Chris Evans: Wow, that flies so far past ridiculous it somehow circles back around to awesome.
The fact that HYDRA made good on its motto. Old HYDRA may have been cut down, but something far worse took its place. There might be worse galactic, mystical, and otherworldly threats out there, but there's something about the worst kind of evil being home grown and having blossomed under the nose of society itself, is scarily awesome in its own right.
Both fights between Cap and the Winter Soldier. Easily the best straight up hand-to-hand (or hand-to-shield/knife-to-shield in some cases) fight scenes Marvel has had on film, and for good reason. These are two peak-of-human-ability soldiers fighting at close combat, with little held back, landing, countering, dodging and reeling at blows that would cripple ordinary humans—in particular, Cap throws the Winter Soldier against a car, then knees him further into it, both times denting the metal of the car doors.
Cap's fighting technique and prowess every time it gets highlighted is awesome; he shows exceptional growth in technique and skill that wasn't quite there in his previous two outings. His shield usage in particular is fantastic to behold each time he hurls it.
One notable move from Cap's side. He outright grabs the Winter Soldier by the neck and holds him up for a good few seconds, then slams him into the ground. One-handed.
During the highway fight, the Winter Soldier is giving Cap everything he's got with a knife (for extra fun, it's the historically-badass Gerber Mk II.) In a blink-and-you'll-miss-it moment, the Soldier switches from a forward grip to a reverse by tossing his knife in the air, catching it, and continuing to engage without missing a beat.
Another blink-and-you'll-miss-it moment, but when Winter Soldier stabbed Steve in the shoulder during their second fight, Steve yanked the knife out...and the blade was bent. Just how dense are this man's muscles?!
The fact that to see what's actually going on in the scene, you have to watch it half-speed or so. It's not that the scene is overclocked or heavy on Jitter Cam, it's just they're so fast that you can barely see what they're doing.
Which is something of a Moment of Awesome for Evans and Stan. Yes, it was choreographed, but they still had to implement it!
The behind-the-scenes extras serve to show that the majority of these two fights did not use CGI or even stunt doubles for their combat moves.
World Security Councilman Singh, who gives Pierce a marvelous Shut Up, Hannibal!. Pierce gives him a glass of champagne and asks the councilman, if his daughter was dragged into a soccer stadium and about to be executed, wouldn't he want to stop her would be murderer with a flip of a switch? The councilman responds with "Not if it was your switch," and smashes the glass on the floor.
When Pierce takes a gun to shoot him, the British councilwoman kicks him out of the way and proceeds to wipe the floor with Pierce's goons in a skirtsuit and high heels, and then reveals herself to be Black Widow wearing a high tech mask and pointing a gun at Pierce, saying, "I'm sorry, did I step on your moment?" For geeks the moment is made even more awesome, or hilarious, by the fact that the councilwoman is played by Jenny Agutter from Logan's Run, Child's Play 2, The Eagle Has Landed and An American Werewolf in London. It's almost disappointing that she turned out to be Natasha all along!
After that, another councilman has a Badass Bystander moment as he grabs a gun and holds Pierce at gunpoint without flinching, not saying anything, just in case he tries something.
And one more for Black Widow. She uses a shocking device to electrocute herself and reboot Pierce's phone device, which he was using to force her to scramble a jet for him to escape, and allowing Nick Fury to shoot Pierce twice in those precious few seconds, the second time finally killing the HYDRA agent.
The S.H.I.E.L.D. technician who refuses to launch the Insight Helicarriers, even with Rumlow holding a gun to his head. His initial hesitation makes it more impressive, because he's clearly scared shitless and when he finally speaks, you can see he thinks he's going to be shot.
Agent 13 kicks out the chair from under the S.H.I.E.L.D. technician so Rumlow's shot misses him.
When Black Widow is about to reveal all of S.H.I.E.L.D.'s classified information to the world, she has this exchange with Pierce.
Pierce: Are you sure you are ready for the world to see you as you really are? Black Widow: Are you?
Pierce smugly points out to Black Widow that two Alpha level members of S.H.I.E.L.D. are required to unlock their database, and Pierce is the only one in the room. Cue motherfucking Nick Fury waltzing into the room and Pierce's Oh, Crap! expression. Pierce gets one himself by coolly asking if he got the flowers he sent.
Fury going above and beyond in terms of Crazy-Prepared, by keeping a record of his blinded eye in S.H.I.E.L.D.'s database, just in case of a threat like Pierce and HYDRA.
There's something else amazing about what Fury says to Pierce.
Pierce: I could improve the lives of 7 billion people by sacrificing 20 million. It's the next step Nick, if you have the courage to take it. Fury: No, I have the courage not to.
It's pretty understated, but this line demonstrates exactly why Nick Fury, for all his morally ambiguous actions, is one of the good guys. No matter how bad the world gets, he will never be willing to make that step. It also sheds a new light on what he said towards the beginning of the movie: "S.H.I.E.L.D. takes the world as it is, not as we'd like it to be." While Pierce is willing to take the easy way out and forge an "ideal" world at such a huge cost, Fury isn't.
Falcon takes care of some homing missiles by turning off his wings, doing a cannonball and falling away from the explosion before turning his wings back on. Even more badass is that Falcon does this by tucking himself up into a ball, rolling forward repeatedly, changing his angular momentum, and curving his flightpath downward, under the helicarrier's glass blister. This is a man who can fly just as well without wings as with them.
Overlapping with Badass Boast, Natasha has a gem of a line in the ending: "Go ahead, arrest me. You'll know where to find me." And then she just gets up and walks out.
A minor one. In Captain America's Smithsonian exhibit, the automated recording for Bucky's exhibit revealed that he was the only Howling Commando to fall in battle. That meant that Cap and the Howling Commandos went through literally all of WWII, taking on the most dangerous missions, with almost zero casualties.
And with the reveal that Bucky lived (albeit with some seriousalterations), that scratches the "almost".
The S.H.I.E.L.D. pilots trying to get to their jets to help Cap and Falcon. While they're all taken out by the Winter Soldier, they still gave it their best shot.
Special note goes to two of the aircraft handlers (the guys in orange jackets). With the Winter Soldier coming right at them, they don't flinch; just draw their sidearms and try to buy a few more seconds.
On similar lines, the two guards who pull their weapons on the advancing Hydra Strike Team, when Cap's speech is still echoing through the building. They're killed instantly for it, but they picked a side.
Immediately after Batroc successfully gets Steve to drop his shield and fight him hand-to-hand, Steve easily and very quickly kicks his ass.
During the big final duel, the Winter Soldier seizes the last chip, Steve gets him in an armbar and starts pulling to get him to let go. The impressive part is on Steve's willpower because Bucky gives an extremely loud scream and typically this is where the hero thinks of his old friend, relaxes his hold, then loses the MacGuffin and has to improvise. Instead Steve refuses to let go despite his friend's cries until he yields the chip.
That needs a bit more elaboration. When Bucky refuses to let go of the chip despite the pain, Steve breaks his arm, eliciting the aforementioned scream, and proceeds to literally choke out Bucky. Credit also goes to Bucky for not yielding the chip despite his arm being broken. Steve can't touch it until Bucky loses consciousness.
A relatively minor one compared to the rest of the movie is when the Winter Soldier is clinging to the top of the heroes' speeding car. Instead of trying to shake off the Winter Soldier with sharp swerves and speeding up (like you'd see in most action movies), Steve simply puts the car in Park and lets physics take care of things.
Not one to be taken down so easily, the Winter Soldier manages to turn this into a roll before putting all the momentum/energy onto the one part of his body that can withstand it: his metal arm. It still sends him a good distance, dragging his metal fingers through the pavement in the process, but with no measurable harm whatsoever.
Bucky using his arm to choke Steve. His grip is so powerful that Steve cannot get out of it, and Buck isn't even trying.
The Falcon vs Rumlow fight. A very quick battle that we don't see much of, but it once again helps highlight the awesomeness that is the Falcon in this film. And even though he's losing until the Helicarrier interrupts them, he still accomplishes exactly what he intended to do: prevent Rumlow from assisting Pierce.
Rumlow: This is gonna hurt! There are no prisoners with HYDRA; just order. And order only comes from pain. You ready for yours? Sam:[disgusted face] Man, shut the hell up. (both men go in for the other's face)
One each for Black Widow and Agent 13. When Winter Soldier attacks their car, Nat jumps into Steve's lap and pulls his head down. She then kicks Sam toward the window. Each of those actions moved someone out of the path of a bullet... which is exactly what Agent 13 does in kicking the chair out from under the defiant S.H.I.E.L.D. tech before Rumlow can execute him. S.H.I.E.L.D. must have one helluva training program.
A shout out needs to be given out to Maria Hill not only successfully faking Fury's death, but doing so without arousing the suspicions of the Black Widow, who's arguably the greatest spy in the world.
The titular Winter Soldier is feared by nearly everyone—this is a guy who Black Widow runs from in near-panic, and it's repeatedly demonstrated that Steve's the only one who can stand up to him in a straight fight. His own support staff are afraid of him. So it's evil but undeniably awesome when Pierce walks in, demands a report and, not receiving one, casually backhands him.
There's a rather understated one that also crosses with funny, but at one point Nat, Steve, and Sam are discussing getting Sam's wing pack out of government hands and into theirs. Sam reveals the security measures, which are extensive enough that for anybody else, there would have been a risky heist involved with plans that may or may not succeed without a hitch and at least a little Ocean's ElevenIndy Ploy-ing, etc. Nat and Steve just look at each other, and the film basically silently says "Done." Next scene, they've got the pack, as if it wasn't any big thing, no need to show how it was done. And because this is Captain America and the Black Widow, the audience totally buys this.