A small town hallucinates en masse - Bad bread, or CIA science project?

Ancient paintings known as the "Sistine Chapel of Cave Art."

Marie Antoinette and Napoleon Bonaparte were fans of this 200-year-old French chocolatier.

An icy lake tucked among jaw-dropping alpine panoramas.

Trek up this glacier before it disappears.

The personal library of the founder of modern neurology is open to visitors.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

France's most famous cemetery, with some of its most curious tombs.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

This abandoned asylum in Wales might look haunted, but it's still beautiful.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

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

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

A modern-day wunderkammer dedicated to Indianapolis history, Afrofuturism, and musical vibrations.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

A lifetime's accumulation of bric-a-brac and kitsch.

This shrine is an ode to the region's rich Hispanic heritage.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

This unassuming building houses one of the world's most extensive collections of cars created by automotive legend Carroll Shelby.

Above Breckenridge, a destructive mining technique sits sunken in a small pond.