This fresco-covered medieval monastery hangs from the side of a steep cliff.

Legend says this public grazing area hasn't been plowed for thousands of years.

The quarry was abandoned over 100 years ago, after a massive ammunition explosion ended in tragedy.

A neighborhood park in the city of Cáceres hides what some believe are revolutionary examples of Neanderthal cave art.

A monument to the migrants who cross the dangerous waters between North Africa and a tiny Italian island.

The charming collection illustrates life in Lincolnshire in the 18th through 20th centuries.

An impressive array of unique homemade planetariums.

This quirky roadside attraction provides insight into Minnesota's logging history.

This Aztec structure remained hidden until the demolition of a supermarket exposed the lost temple.

The house is an iconic pilgrimage site for fans of the Illinois-based emo band.

This 7,000-year-old megalithic wonder covered by a Franco-era reservoir emerges in times of drought.

The beautiful bas-relief lines a sliver of a 19th-century walking path between two charming French villages.

This botanical garden boasts sculptures, industrial ruins, and an endorsement from the Dalai Lama.

This ancient village provides insight into the complexity of the pre-Columbian Fremont Culture.

This vast collection of smoking pipes from across the world spans centuries.

The cross-shaped memorial is filled with kitschy tributes to the late pop star.

The world's last remaining store of its kind.

Centuries later, the victims of Great Britain's greatest hysteria are finally being remembered.

It's gunky, it's gross, and it's been freed from the sewer and put on display.

West Point’s only monument to a woman veteran stands above an empty grave.

An unusual "skull with ears" sits in the crypt of this small church tucked away at the end of a narrow alley.

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

Rowdy rebels fortified this home during the first popular uprising in United States history.

This functional solar system model was inspired by the famous Eisinga Planetarium.