The yawning maw of this pagan visage is said to bite off the hands of liars.

A hidden three-foot-wide house separates these two regal churches.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Once the last route taken by condemned prisoners.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

The highest bridge in America was built for an almost unnervingly small amount of money.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

The oldest residential street in Europe also features an optical illusion.

It's believed the soldier was 109 years old when he passed away.

A clear blue swimming hole with hidden caves, still unexplored.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

An architectural oddity where the triglyphs of the courtyard of walls create an optical illusion.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

One of the oldest bridges in Norwich was used during the English witch trials and is said to be haunted.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

Cemetery featuring rare glass-fronted columbarium.

A cemetery housing wild west legends in South Dakota.

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

This modern labyrinth lies in the shadow of a ruined medieval castle.