An abandoned railroad tunnel is now filled with bioluminescent bugs.

This Bronze Age tomb makes the most unusual front garden fixture.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This 600-year-old home seems to defy physics.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

Twice a day, the water of the Petitcodiac River flows upstream in a surfable wave.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

British Empire's last territorial expansion, claimed by four countries.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

The city of Halifax still bears the scars of the largest explosion prior to the atomic bomb.

This Canadian monument to the man who invented the telephone allows visitors to get up close and personal with the artifacts of his life.

The ghost town that ended up on Ebay.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

The ill-fated plan to reroute the Mississippi so that Union ships could bypass Confederate fortifications on the river bend.

The only presidential monument to display a late POTUS's actual casket.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

The world's smallest drawbridge.

This massive subterranean fissure is known as the "underground Grand Canyon."

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

This crescent-shaped sliver of sand is a magical haven for a herd of feral horses.