Art and a pun, all in one.

Floating swimming pool within a moored vessel.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

This wooden hotel is a temple to German sustainability and forest conservation.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

The world's first and only three-segment bascule bridge folds up into the shape of a capital "N" to let boat traffic through.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

Shimmering sea-colored mosaics and Jesus statues cover this opulent building.

Baroque celebration of the end of the Great Plague of Vienna.

Op-art architecture designed for happiness.

The Habsburgs' royal collections of art and wonders.

The final resting place for the remains of 143 Habsburg royalty.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Monument to a suicide protesting the Soviet invasion.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

What was once the largest NFL stadium.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.

A miscalculation turns a very shallow freshwater lake into a very deep saltwater lake.

A swamp and garden tour featuring local wildlife and exotic botanical specimens from around the world.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.