These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Along the Rhine, about a mile from the historic Munster, learn the heartrending story of two lovers torn asunder, cast into unknown layers of time and space.

Ruins of a German castle on top of a towering stone pillar.

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

In 1830, cemetery workers in Cham unearthed a chamber housing thousands of skeletal remains from the 13th century, which can still be viewed today.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Even France's favorite aquatic son Jacques Cousteau, couldn't get to the bottom of it.

Village situated on a narrow volcanic escarpment.

A Romanesque tower appears when water levels drop.

This small chapel is built of human bones and decorated with a golden skeleton.

This impressive collection of skulls and bones was gathered by an ex-zookeeper who took advantage of a pig plague.

Steadily reminding Czechia of its past.

Two monstrous faces loom over a village in Czechia.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

"The most colorful grottoes of the world.

Mummified monks and the accidentally interred, in a 17th-century crypt.

A church of bones, decorated with 40,000 human skeletons.

Europe's second largest ossuary wasn't discovered until 2001.

The personal charnel house of Anton Bruckner.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.