Giant marble phalluses on the sacred island of antiquity.

Roman ruins top white travertine terraces formed by ancient hot springs.

This hilltop warren of monastic dwellings is the result of centuries worth of Mongol attacks.

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

The Argonaute submarine was the French navy's pride and joy in the 1950's.

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

The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The celebrated eyesore created by starry-eyed sweethearts.

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

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

An ancient monastery, a locked room, and a mysterious book heist.

There has been an astronomical clock on this spot since the 14th century.