This is the House of Days. It stands beside San Francisco Bay.
On its other side is a camera. Each hour of every day it takes a picture in which is a small slice of the North Bay and a very large slice of sky.
On its right side is a control panel. You look through a glass pane at the most recent mosaic of pictures, through which you can scroll. Each row is a day. If you find one you like, you can enlarge it.