Slash mentions many venues in his book, but the one that seems the most significant to him is the Troubadour, which was home to many heavy metal bands in the 80's such as Guns 'N Roses and Motley Crue. The nightclub was housed with crazy-haired groupies, and strung-out rock and roll fans of the 80's. Slash played at the Troubadour multiple times and has never had a bad experience there, he says that that is his favorite venue to play at.
Another place Slash mentions in his book is where he met his life-long friend when he was 16 years old, at the ruins of the Pan Pacific Theatre in LA. It had been a 1940's movie palace, with an arched ceiling and a huge screen that used to show news reels. The arches were still intact, but the rest of the place during Slash's arrival had been reduced to rubble. Slash claims that it was a meeting place for ages 12-18, and was a place where kids hungout and did drugs. It was significant to Slash because it was a place that he could "fit in".