See all Pubs in Kaiserslautern Kaiserslautern for: Adventure, Food And Dining, Art And Culture, Nightlife, Spa, History, First Timers, Family, Romance, Shopping 21 About 21 is a cocktail bar situated on top of the city-council building, the tallest building in Kaiserslautern. It offers a nice view, if for no other reason because it's the only place in town where you cannot see the city-council building itself. Add to Wish List