Images chiseled into the basalt here date back an estimated 300 years.

Art Deco stylings conceal the true nature of this bridge.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This Scottish graveyard is the final resting place of the man who inspired the character Ebenezer Scrooge.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

The vaulted ceiling is home to a scurry of “squirrelgoyles.”

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

A unique tribute to the millions of animals who served and died for the British military.

There's an exclusive Beefeaters pub hidden in the Tower of London.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The final resting place of the "father of special effects."

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

The experimental test tracks of a retro-futuristic monorail still stand in the French countryside.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

The famous winding walk at Chartres is surrounded in mystery and myth.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.