20. 3rd and Army – San Francisco, California
3rd and Army, a plaza in an industrial area of San Francisco that Mike Carroll allegedly discovered while driving, is on neither 3rd nor Army. It is, however, lined with ledges of varying heights, a fact that pretty much anyone who’s watched a skate video is aware of. And though the wind can be a challenge, it’s a rare bust-free spot in a city that has gone to great lengths to drive skaters out of its downtown core.