This legendary intersection was the epicenter of the psychedelic '60s and remains a counterculture magnet. On average Saturdays here you can sign Green Party petitions, commission a poem, hear Hare Krishna on keyboards and Bob Dylan on banjo. The clock overhead always reads 4:20 – better known in herbal circles as International Bong-Hit Time. A local clockmaker recently fixed it; within a week it was stuck at 4:20.