The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

An open-air museum in a mountain valley features works designed to blend in with—and disintegrate back into—their natural surroundings.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Gods clash with machines in a power plant regenerated as a museum.

An Italian vineyard invites religious pilgrims to stop by 24/7 to get their drink on, for free.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

Fountain where visitors can earn a license to be mad.

Fortified medieval tower house with lovely roof garden.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

Geometry and mystery come together in an epic show of octagonal masonry.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

A gorgeous medieval library where the books are kept in chains.

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

This military mausoleum captures the solemn grandeur that most memorials only aspire to.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

Water and windows define this defensive Italian well.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

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

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

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