Ian Anderson would always learn a great deal from the bands that he saw live, but these things weren't always positive.

Looking back at Pink Floyd performing their famed concert in Pompeii, watch the band fill the historic amphitheater with the hit song "Echoes" ...

Pink Floyd broke a lot of rules, blew up at least one stadium scoreboard and watched an expensive inflatable pyramid vanish ...

Pink Floyd was the kind of band that knew how to curate a tracklist, and these album-closers are some of their finest.