The only structure left with direct ties to the Salem witchcraft trials of 1692.

Colorful, cheeky signs spill out of legendary New Orleans folk artist Dr. Bob's Bywater studio warning you to "Be Nice—Or Leave."

The curiosities and wonders of pharmacy in a delightful historic building.

A museum and shop on Bourbon Street located in the French Quarter.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

Odd outsider art installations surround a Gold Rush-era ghost town.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The first green space constructed on an elevated viaduct.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

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

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

A large sculptural artwork and garden in Escondido, California.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

A beautiful but toxic fountain of mercury.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

The world's oldest surviving music hall was also once a freakshow.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The heads of two giant mythological water horses honor Scotland's horselord past.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.