Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

The largest medical and anatomical collection in France lies hidden from the public.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

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

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

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

One man's extraordinary topiary garden in a small South Carolina town.

One man's fifteen-year diversion lead to a garden of intriguing sculptures.

Before this bridge was built people had to wait for the ferryman, an annoyance that, the story has it, gave the town its name.

Miles of man-made caves and tunnels are currently used for cultivating mushrooms.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.