"New Orleans resembles Genoa or Marseilles, or Beirut or the Egyptian Alexandria, more than it does New York.... Like Havana and Port-au-Prince, New Orleans is within the orbit of a Hellenistic world that never touched the North Atlantic. The Mediterranean, Caribbean, and Gulf of Mexico form a homogenous, though interrupted, sea." —A. J. Liebling, The Earl of Louisiana (quoted in A Confederacy of Dunces)
A Crescent City montage, courtesy of Wikipedia. From top left: A typical New Orleans mansion off St. Charles Avenue, a streetcar passing by Loyola University and Tulane University, the skyline of the Central Business District, Jackson Square, and a view of Royal Street in the French Quarter.
Ah, the Big Easy, famous for Mardi Gras, voodoo, and jazz music, despite not inventing any of these. Also hurricanes. The French have a consulate there. Another claim to fame is the food; you can find almost any kind of seafood (except lobster) here. The squeamish can rest easy about how well-cooked their food is.
Some streets are narrow, because they were originally built for horse and carriage. Do not complain, they indicate that a natural disaster has never annihilated the surrounding area and created room for a wider road.
Tourists think they're cute by pronouncing it "N'awlins. To not come off as a douchebag, just go with "New-OH'rlins/Or-LEANS". Once you've lived here a couple years, your speech will naturally slur it down to "N'awlins," but don't force it.
One Calvin and Hobbes strip has Calvin wonder where people go when they die, to which Hobbes responds that he believes they play saxophone for an all-girl cabaret in New Orleans. "So you believe in Heaven?" "Call it what you like."
New Orleans is Vampire: The Requiem's setting of choice, likely due to its association with vampire fiction.