The NASA Earth Observatory has a huge 'collection' of beautiful photographs. This collection includes some photographs of cities at night taken by astronauts from the International Space Station.
Astronauts circling the Earth have the wonderful vantage point of observing the nighttime Earth from 350-400 kilometers above the surface, taking in whole regions at once. Onboard cameras and a bit of experimentation allow astronauts to take highly detailed images of our cities at night and share them with the rest of us.
Brasília at night is the current image of the week. They say that "Brasília is widely considered to be one of the best examples of 20th century urban planning in the world." I'll try to take that as a complement.
(all photos credit: Gateway to Astronaut Photography of Earth)
Some other photographs: Montreal, Dubai, Las Vegas, Los Angeles (this video is great), London, Houston, Northern China, Buenos Aires, São Paulo. [Hat tip to The Map Room]
And my favorite ones:
