The image at the top is from the webcam of the Lawrence Hall of Science at the University of California. It sits high in the Berkeley Hills
and is one of the sites I visit daily. It’s an excellent ‘weather report’ of what the day is going to be like.
Today’s view is spectacularly clear, revealing details like Sutro Tower
which is only about 30m (100′) wide and not solid. 
Unfortunately there are no currently publicly accessible webcams from the tower.
You can also make out the deck of the Golden Gate Bridge which is only about 10m (32′) thick and also a lattice girder construction.
The LHS webcam page also has a very cool time lapse of the previous 24 hours.
Here are some images from my screensaver file as a slideshow:
Stannous Flouride's Book of Truthiness 