Tropical Islands Resort...

Tropical Islands Resort is an artificial tropical resort in Brandenburg, Germany. It is said to be 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 (36 miles) south-southeast of Berlin, off the "Staakow" exit of the A13 Autobahn. It resides inside a disused hangar 360 metres long, 210 metres wide and 107 metres 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. Visitors find an exotic environment with rain forest, beach, artificial sun, palm trees, orchids, and bird soundtrack. The air is warm (25 °C). Tropical Islands is open all around the clock, every day of the year.