Thursday, 16th February 2006 by Alex Turnbull
This is the world famous Lombard Street in San Francisco. Known as “the crookedest (most winding) street in the United States”, Lombard street was re-created in Grand Theft Auto: San Andreas as “Windy Windy Windy Windy Street”.
Its ridiculous switchback design was instituted 1922 in order to reduce the hill’s natural 27° slope, which was too steep for most vehicles.
There’s some good ground-level shots at Wikipedia.
Thanks to James Boorman-Padgett and Nathaniel Hansen.