A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Cliffs full of fossils at the portal to England's Jurassic Coast.

A monument to the center of the North American continent may be off by a few miles.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

One of the most easily accessible examples of the rare 1960s UFO houses.

Handsomely crafted representations of our round planet.

Museum devoted to the artificial language of Esperanto.

A non-stop elevator ride in Vienna's city hall.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.