Prague, Czech Republic
The rather narrow entrance to this wine-cellar-turned-bar is no indication of the cavernous interior. U Sudu quite literally has many levels. As you work your way down you'll pass through a narrow, dark hallway, find yourself in a level dedicated to foosball tables, and end up in the demurely-lit cellar. Perhaps it's the laid-back atmosphere or maybe it's all the wine but this is one cellar where a couple or a group can definitely get comfortable.