Medical history museum featuring a lovely doctor's office from the 1800s.

A hill carving of the legendary dragon that terrorized the village of Bures in the Middle Ages.

This Moab institution functions as both a rock store and a small natural history museum.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

A local pineapple cannery once dumped pineapple trimmings off of this pier, with sometimes smelly results.

This stretch of Canadian road was named after a nickname that stuck so hard the city had to keep it.

The Arctic Archipelago is home to world's largest third order island: an island in a lake on an island in a lake on an island.

It took over 100 years to decode this enigmatic epitaph for two buried brides.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

These hellish-looking cliffs in the Canadian Arctic have been burning for centuries.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

In the city forest of Augsburg are oval, artificial ponds formed from a World War II bombing campaign.

The famous facade of Grand Central Terminal hides a regulation tennis court, and it's not the first one.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

A chilling monument to Korean patriots who resisted the Japanese occupation.

Long tunnels run under the ancient chariot racing circuit to the tower.

A Victorian marvel of engineering is now a 21st-century tourist attraction.

This cave system allegedly holds the "metallic library" of a lost ancient civilization.

This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

This Turkish cave boasts some rather bizarre associations with the King of Mount Olympus.

A tangible and sobering reminder of an atrocity that took place during a secret war.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

A giant gun barrel in Barbados that once hoped to shoot outer space with science.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.