What San Francisco street that is famous for a section known as "the crookedest street in the world" is partially designated as part of U.S. Route 101?
U.S. Route 101 in California: U.S. Route 101 (US 101) in the state of California is one of the last remaining and longest U.S. Routes still active in the state, and the longest highway of any kind in California.
i don't know