This architectural onion has an original 1930's Jerry O'Mahony dining car at its core.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

Famously misunderstood wonder of the ancient world

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

The eccentric mansion of one of the most popular horror authors of modern times.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

A decidedly out of place statue memorializes the Blues Brothers characters at this water bottling plant.

The petroleum industry brings you the joys of hydrocarbons and largest collection of antique oil rigs in the world.

A handful of beehive kilns are all that’s left of a historic brick-making empire.

The world's largest fire hydrant is supposedly tornado-proof.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The site of Paul Revere's historic two lantern warning.

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

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

At almost 1,000 years old, this is the oldest known door in all of Britain.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Pop culture has helped to keep this iconic British building from being destroyed.

The bones of two medieval royal lions were discovered at the historic fortress.