The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

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

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

The World Wide Web was created in this nondescript corridor at CERN.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

A unrivaled and rather horrifying collection of wax dermatological models.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.