This modest marker near Notre Dame identifies the very center of Paris.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

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

Paris' fabled purveyor of exotic taxidermy and natural history curios.

Painstakingly built dioramas sit unnoticed in a Boston office building.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

What remains of the summer palace of King Kamehameha III.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

A cluttered and astounding collection of antiquities and curiosities.

Famously misunderstood wonder of the ancient world

Mysterious stone tower featured in many alternative histories of the New World.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Unicorns, elephants, and bears, oh my!

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

100 year tradition of fist fights, marked by marble footsteps.

An ancient knight and a symbol of the city's freedom.