Once disputed as the largest sundial in the world.

Despite its extensive history, this fort saw little to no combat.

Leave a trinket at this artistic collection of mailboxes.

Designed to illustrate two parts of the human psyche.

Visitors to this museum will discover that kaleidoscopes are much more than toys.

This abandoned prison was so notorious that its name has become a metaphor throughout Albania.

This black cat was actually designed to ward off bad luck.

Named after a Mexican president, who once lived nearby, this park in a residential Mexico City neighborhood packs a whole lot of history into a small space.

The remains of a German plane still sit in the Norwegian wood where it crashed in 1942.

Once named the “world’s oldest gas station” due to its unusual construction material.

The ruins of a 15th-century castle that has seen its fair share of bitter feuds.

The first location of the eventual video game giant.

Located in a remote mountain valley in Yamagata Prefecture, these hot springs have attracted bathers for over 450 years.

Colorful sedimentary rock layers provide opportunities both for hiking and photography.

Deep in the limestone cliffs of the Alabaster Coast, a German fortress built during World War II.

The remains of St. Lucius of Chur were said to be kept in this crypt for several centuries.

On a trail in Portugal's Barão de São João National Forest, a pile of faces look up at hikers from the forest floor.

Where you'll find anything but nothing.

Inside the simple black-and-white exterior of Église Sainte-Cécile hides a pastel wonderland.

This remote Montana battlefield is the site of the Nez Perce Flight of 1877.

The shiny silver little brother to Copenhagen's Little Mermaid statue.

A hilltop monastery on the Greek island of Hydra.

These Aboriginal fish traps are among the oldest human constructions in the world.

According to a local story, this tree's blossoms signal the end of war.