Budapest's Communist-era statues, banished to the suburbs.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Once the home of a hermetic monk, this cave now houses a small church.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Saintly bones pressed into a wax effigy of a Catholic superstar.

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

This Parisian fountain is a little bit fantasy and a little bit nightclub.

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

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

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

This massive library holds what was once the largest book collection in the world.

The celebrated eyesore created by starry-eyed sweethearts.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

The ruined remains of the airport Claus von Stauffenberg departed in his failed attempt to kill Adolf Hitler.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

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

Go inside to really appreciate this 500-year-old technological masterpiece.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

A diverse collection of wax, bone, papier-maché and mummified relics.

The mummified relic of St. Catherine sits forever on a golden throne.