An important landmark in the history of algebraic logic.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

Ghosts of France's colonial past.

Colorful and chaotic stacked hotel in North Holland.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

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

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

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

The celebrated eyesore created by starry-eyed sweethearts.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.