A massive indoor resort called Tropical Islands was created inside the former Brand-Briesen Airfield near Berlin. And when we say massive, we mean massive. The man-made paradise can fit up to nine football fields, and it's even undergoing expansion. Regardless of the weather outside the complex, resort guests will always enjoy a temperature of 78 degrees.
In addition to the 13 bars and restaurants, attractions include a tropical rainforest, mini golf, island ballooning, a beach, a lagoon, and so much more. Guests can even stay at this theme park with their choice of rooms, lodges, tents, and tepees on a campsite. Check out INSIDER's Facebook video above, and prepare to be blown away.