These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

A six-ton wedding present for the King of the Scots.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

American soldiers discovered Europe's best one-liner at the end of World War II.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

The most visited, and possibly most controversial, museum in Germany.

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

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

Ruins of a German Castle on top of a towering stone pillar.

An ancient rock engraving shows Aboriginals used their advanced knowledge of the stars to hunt and gather.

Once the path of a railway tunnel, now home to thousands of glowing insects.