Before my projector broke down, I used to project an image of Eiffel Tower, or other favourite architecture of mine, on a wall at night. I think it will be cool to project Andy Warhol's 8-hours-and-5-minutes-long film Empire on the wall all night long. Empire is a silent black-and-white film made in 1964. It is nothing but a continuous slow motion footage of the Empire State Building from dusk till late late night. Here's a short clip of the film:
Video from Channelbeta's youtube channel
When I visited New York two years ago, I took a picture of the Empire State Building at night, rendering it monochromatic blue: