USA - California - San Francisco - Lombard Street

This steep, one-block section of the Lombard Street consists of eight tight hairpin turns, wich make it one of the crookedest streets in the world.After the windy part, the Lombard Street continues through the Telegraph Hill neighborhood, until it becomes Telegraph Hill Boulevard, where vehicles can access the Coit Tower. Funny, that behind the hill Lombard Street starts again for 2 blocks and finally terminates at The Embarcadero.The switchback's design was born out of necessity in order to reduce the hill's natural 27% grade, which was too steep for most vehicles to climb. The speed limit in this section is 5 mph (8 km/h).