fons writes "The huge construction dome of the now bankrupt zeppelin maker CargoLifter, has been turned into an indoor tropical island. For about 20euro a day you can swim in the sea, take a walk in the rainforest or go to a beachparty. While it is snowing outside, it's a always a pleasant 25C on the island. And there are no tsunami's. It's bigger than Biosphere2 (it fits the Eiffeltower) but there's less sunlight. Would you spend your vacation in there? The Germans don't seem to be very eager."