A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

Bohemian paradise covered in majestic forests.

This doorless 20th-century elevator doesn't stop or slow down.

Where Venice's gondolas go for a tune-up.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

The shell of a medieval fortress offers commanding views of the area it once protected.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

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

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.