This unassuming office building is one of the filming locations for the Superman movie coming out in 2013. It's also super green: it was the first project to be certified LEED-CS Gold.
We hope that Superman doesn't run into Lex Luthor at Daley Plaza, in the shadow of Picasso's untitled sculpture.
Superman can leap "the tallest building in a single bound", quite a feat at the Willis Tower, which is 1,450 feet (443 meters) high or 1,730 feet (520 meters) including the twin antenna towers.
Today, visitors can explore historic exhibitions, borrow seeds from an heirloom seed library, learn about urban horticulture, eat soup and debate politics, and see contemporary art exhibitions. Read more.
