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

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

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

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

This aging storage facility is the world's largest brick warehouse.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A galley-shaped memorial to the prisoners of an infamous fortress.

All that is left of this medieval castle is two towers, both of which now display a visible tilt.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

The 1940s structure houses what was once Europe's largest telescope.

This Italian foot path winds through the mountains via 52 individual tunnels.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

A musical instrument played by the sea.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

A cone-shaped top and cylindrical body set this 900-year-old structure apart from other Italian bell towers.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

An abandoned monastery sits on a far-off island in the Adriatic Sea.

Italian cave with exceptional acoustics and an unsavory history.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

Pilgrimage site for star-crossed lovers.