What your’e looking at is the AquaDom. Though it’s part of the Sea Life Berlin complex, it’s housed inside of the Radisson Blu Hotel in Berlin, Germany. So stay there and you’ll have a view like no other.
The AquaDom is the world’s largest cylindrical aquarium, which contains 1 million liters of seawater. It’s home to over 1,500 fishies, including but not limited to trigger fish, hogfish, humphead wrasse (Cheilinus undulatus), blowfish (Tetraodontidae), surgeonfish (Myripristinae), soldierfish (Tetraodontidae) and swarm fish, like Cero mackerel (Scomberomorus regalis) and Silver moonfish (Monodactylus argenteus).
The aquarium itself measures 82-feet tall, though the actual tank is 52.5-feet in length and boasts a girth of 38-feet. That said the water level doesn’t exceed 46-feet, which is nothing to snub your nose at, since the tank contains 33 tons of sea water that is circulated every hour. But all these deets are hardly the awe inspiring part. Inside the cylinder is a two-story glass elevator that plays host to up to 48 tourists and yes, moves up and down.
Just imagine if the acrylic enclosure, which measures 6-inches thick at the top and 8.5-inches thick at the bottom, broke?