One-of-a-kind museum inside the first Boeing 747-400 ever made.

One of the world’s longest pedestrian suspension bridges.

This 13th-century monastery chiseled into the side of a mountain is equipped with a bridge that can be lifted to protect against raids.

Known locally as "the giant head," this 14-foot LED sculpture has a photo booth in the neck where you can have a 3D picture taken and displayed.

During the 19th-century, this park was a vital trading fort.

This section of the Kennet and Avon Canal has been designated the same level of heritage protection as Stonehenge.

A unique flight of canal locks that owe their form to 19th-century cost-saving measures.

This pop-culture shop also offers the chance to become part of their favorite tv show or movie.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

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

The oldest active mini golf course in the U.S. has an elegant Art Deco style filled with lush tropical plants.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

A small museum in this border city displays the contraband art that has been stolen back from smugglers.

Dozens of Soviet-era trains and carriages fill this outdoor museum.

Thanks to its heroic service during WWII this Soviet castle has been turned into a monument towered over by a brutalist titan.

The stone circle honors the 19 firemen who perished during the Yarnell Hill Fire.

A commemorative plaque at the door pays tribute to an "American Patriot" known for his betrayal.

What do we know about the real woman behind one of the Beatles' most famous songs?

It took more than 300 years to build this church, which is home to two sacred vessels believed to hold the blood of Christ.

The oldest remaining authentic Putt-Putt course that Donald Clayton created in Ohio.

All that remains of this once-booming mining town are the ruins of a saloon.

This nearly abandoned town was once a thriving mining community until a series of fires.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.