Former Cargolifter airship hangar "Aerium", now housing the Tropical Island theme park in Brandenburg, Germany - stock photo

Tropical Island (Brandenburg), Germany - 5 May 2016: Outside view of the Tropical Island resort and theme park in Brandenburg, Germany, that is housed inside the former Cargolifter airship hangar "Aerium". With a height of 107m (351ft), the huge hall is the world's largest self-supporting building and one of the largest buildings on Earth by volume. The German airship company Cargolifter built the hall as hangar in 2000, but went bankrupt in 2002. Since 2004, the Aerium houses the Tropical Island resort and theme park with a maximum capacity of 6000 visitors per day.