The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

It was once used as a classroom to teach mining skills to local high school students.

These circular ruins are all that remain of a 17th-century Arctic whaling outpost.

The world's northernmost brewery uses water from a 2,000-year-old glacier to create its beer.

This Arctic mining town is home to a cat that's spent years masquerading as a fox.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

More than 100 Hindu temples are slowly being swallowed by the forest.

The river depicted in the antiwar film 'Apocalypse Now' was likely based on this Mekong tributary.

This mysteriously shaped boulder may have been used for human sacrifice in ancient times.

Canada's first pet cemetery is now abandoned.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

A small poultry graveyard in the courtyard of a popular Key West watering hole.

"Prepare yourself! You are to become the voice of Interplanetary Parliament."

Resting place of Hollywood's immortals is also site of summer film screenings.

Dozens of feral felines rule a segment of Hollywood's only graveyard.

The graveyard displays the colonial Mexican and Caribbean architectural fusion that defines this city.

The world champion cow is buried within a historic old asylum.

A simple stone remembers one of the most menacing horses in the Swedish military.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

A 131-year-old wunderkammer of Texas history.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Two small markers remember the Alamo's feline protectors.

Steel remnants of a bridge make up a unique sculpture along the banks of the Illinois River.

This bridge dates back to the 9th century and allows visitors to walk an ancient path amid modern industrial trappings.