And it is large at 360 metres long, 210 metres wide and a 107 metres high.
Intrigued by this bizarre structure and explanation, I snooped it out online.
It is indeed an indoor water park - one of the largest of its kind - and it didn't actually house zeppelins (though that is a persistent rumor).
A taxi to Munich Airport takes about 45 minutes from the city.
The S1 train to Munich Airport takes about the same amount of time and run frequently.
After a turbulent 20th century, Berlin has reinvented itself as an exciting, innovative, modern capital and is an appealing destination for students, entrepreneurs and expats from around the world.