The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

It took 82 years and four different plaques to finally get the story right.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

This vineyard was the site of the infamous Charge of the Light Brigade.

Scattered throughout London are ancient remnants of the city's former bounding wall.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Go inside to really appreciate this 500-year-old technological masterpiece.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The once highest point in China blends symbolic design with a kick of adrenaline.

This psychedelic tourist trap is a leisurely descent into madness.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

A surrealist timepiece by the artist of melting clocks.

These boots are made for selfies.