Peanut butter trees and miracle berries are just the beginning.

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.

An ancient monastery, a locked room, and a mysterious book heist.

This small piece of Michigan is entirely surrounded by Ohio.

The abandoned medieval theme park was meant to be the "Disneyland of the Philippines."

Running since 1864, this clock has yet to be wound, one of the longest-running science experiments known.

The National Park Service’s best-kept secret with views that rival any in D.C.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

An exhibition devoted to the life (and posthumous taxidermy form) of the last known representative of the Pinta Island Tortoises.

Faces carved into the cliffs create an otherworldly walking trail.

Hundreds of enormous icebergs drift through this waterway every year.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

The longest hedge maze in the world.

This 140-year-old beacon off the Florida Keys marks the wreck of a Navy ship that once roamed the Caribbean hunting pirates.

Kakadu National Park is known for its stunning beauty and its rock art, which represents the longest historical records of any continuous civilization on Earth.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This 1800s former railway tunnel is now part of a heritage walking trail.

The original stone marking the interwar border between Germany and Poland sits in this unassuming village park.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Peek into a cave of giant, glimmering crystals.

This remote camping site offers incredible stargazing opportunities.

One man's ambition created this psychedelic log home.