Wow, this is even bigger than the (now demolished) SeaGaia Ocean Dome. Depending on source, that was roughly 100m x 300m x 38m compared to this one's 360m x 210m x 107m. The principal difference being that one was built expressly to be an indoor water park. As mentioned, inability to recover the construction cost was what led to its demise. The hotels that were attached to it still remain, though.