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Nightmare Fuel: War of the Worlds
The alien weaponry vaporizing people as they run for their lives. The sight of survivors covered in the ashes of victims and empty clothes falling from the air is some pretty unsettling imagery even with Bloodless Carnage.
People being captured alive, both a) to feed the Tripods (which have a biological component) and b) to be used as fertilizer.
Rachel stumbling across the river full of dead bodies. The look on her face says it all.
The tripod attacking the ferry. Tom Cruise's character and his kids get treated to the lovely sight of a car that still has people in it getting flooded with water.
The Train scene. At first, while everyone is making a mass exodus, people see a train coming by. The train is on fire and a not a single noise is made while it goes right by everyone. No screams, no music; Just the sound of the train just whooshing by.Nothing Is Scarier, indeed.
The scene where Ray is forced to kill Ogilvy. It's eerie listening to Rachel singing her lullaby to herself, knowing what's happening in the next room.
The Hobbes Was Right aspect of the crowds, like the one that threatened Tom Cruise's character and his kids just to have access to a car, and the insane mob killing each other over the car beforehand.