The Citadel: The World's First Floating Apartment Complex

Since Holland is mostly under sea level, keeping houses from flooding is a constant problem. This concept fixes that problem by just having an apartment complex that floats.

The Citadel: The World's First Floating Apartment Complex

The Citadel is the residential part of the "New Water" complex, which tries to embrace Holland's waterworld-ness instead of fighting it. It'll have a floating road to the mainland as well as plenty of boat docks for its 60 units. Apparently it'll also be 25% more energy-efficient than an equivalent complex on land by using the surrounding water for cooling. It looks kind of crazy, but the sort of crazy that could actually work. [Inhabitat]