Lombard Street is an east–west street in San Francisco, California, that is famous for a steep, one-block section with eight hairpin turns. The street stretches from The Presidio east to The Embarcadero. Most of Lombard Street's western segment is a major thoroughfare designated as part of U.S. Route 101. The famous one-block section, claimed to be "the crookedest street in the world", is located along the eastern segment in the Russian Hill neighborhood.