Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

Large miniature theme park with 100-plus models.

Have tea in a cemetery with a dazzling view of Istanbul.

Climb a set of vertiginous stone steps to the top of this impressive ancient edifice.

Step back in time and witness the fall of Constantinople.

An entire town preserved as a historic landmark.

The formidable fowl can be found standing near an isolated hiking path.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

No Gordon Lightfoot song, only a barebones monument to greed.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

One man's ambition created this psychedelic log home.

At the time of its completion, it was the tallest dam in the world.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

This sandstone building is a relic of the Overland Trail.

A popular rock that acted as a waymarker for American pioneers.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

Population: 1.

This Wyoming town is fascinated by a particular mythical creature.