2. The Troubadour in West Hollywood, Calif.
Few clubs have such an impressive history: The Troub was key to L.A.'s late-Sixties rock explosion and the glam-metal scene of the Eighties, a room where both Jim Morrison and Axl Rose became legends. More recently, everyone from Radiohead to the White Stripes has kept its legacy alive.
Fun Fact: Legendary potheads Cheech and Chong were discovered by Lou Adler at the Troubadour’s Monday Hoot night in 1970.