Tropical Hangar Resort

Now it is Tropical Islands Resort. Tropical Islands Resort is an artificial tropical resort in Krausnick, Germany. It is said to have the world’s largest tropical indoor pool which can accommodate up to 8,000 visitors a day. It is also the world’s largest indoor waterpark at 66,000 m² (710,000 sq feet).
The resort is located in Briesen/Brand, part of Halbe in Dahme-Spreewald, Brandenburg, Germany, about 60 km (37 mi) south-southeast of Berlin. It is inside a disused hangar 360 metres (1,181 ft) long, 210 metres (689 ft) wide and 107 metres (351 ft) high. At 5.5 million m³ (194 million ft³), it stands as one of the largest buildings on Earth by volume, and is the world’s largest single hall without supporting pillars inside. The hangar cost €78 million and was originally commissioned by Cargolifter AG as an airship hangar named Aerium, but the airship it was intended to house – the CL160 – was never built.
The Malaysian Tanjong company bought the hangar and the surrounding real estate for €17.5 million and turned it into a resort with a man-made tropical habitat. It opened on December 19, 2004. The resort has an exotic environment with rainforest, beach, artificial sun, palm trees, orchids, and birdsong. The air is kept at a warm 25 °C (77 °F). Tropical Islands is open all day, every day of the year.