Wabasha Street Caves

The Wabasha Street Caves is an event hall built into the sandstone caves located on the south shore of the Mississippi River in downtown Saint Paul, Minnesota.^[1] The caves have been home to mobsters, speakeasies, and in more recent years have begun hosting a "Swing Night" on Thursday nights with live big-band music. The Wabasha Street Caves also provide historical tours of the sandstone caves in Saint Paul, Minnesota.

• http://en.wikipedia.org/wiki/Wabasha Street Caves