Also known as the second incarnation of the old Iron Door, Nebe ("Heaven") is a cellar dance club and bar under about a thousand years of Old Town stonework, brick, and packed earth that both muffles the music (for those outside) and amplifies it (for those within). The crowd tends to be young and the drinks are cheap, but it's not quite a student bar—especially not the smooth not-too-exclusive VIP lounge at the back. Things usually get moving sometime between 1 a.m. and 3 a.m., making an early visit a good idea if you want to snag one of the few tables and actually hear someone speak. It's mostly hip-hop and techno, but alt-music fans should keep an eye out for Heartbeats, a regular night of indie rock.