Resting place of Hollywood's immortals is also site of summer film screenings.

A castle built by an eccentric medieval enthusiast in suburban Ohio.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The Pope’s secret escape route.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

The celebrated eyesore created by starry-eyed sweethearts.

The tomb of history's greatest potato promoter is surrounded by tubers.

This bridge was constructed from the rubble of the infamous Bastille.

How did a French journalist’s grave become the sexiest statue in the cemetery?

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

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

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

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

Paris' linguistic guide to the international language of, yes, love.

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

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

The largest earthwork effigy in the world.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

What is it about mushrooms that makes people wish they lived inside of them?

This magnificent Cincinnati graveyard is also a popular public park.