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

This former fascist summer camp was abandoned for decades.

A fake medieval village in the middle of Turin.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

A sulfuric hellscape in southern Italy.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

Erotic art covers the walls of the largest ancient pleasure palace.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Five candy-colored villages on the Italian Riviera.

Venice's island of the dead.

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

An Italian hillside ghost town.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Ancient mysterious ruts carved in the bedrock.

This subterranean necropolis holds three floors of antler-dug grave caves.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The final resting place for the remains of 143 Habsburg royalty.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A vast Communist-era exhibition space in the Bulgarian capital.

A striking symbol of the Bulgarian capital.

A collection of art from Bulgaria's time as a communist state.

"Unity, Creativity, Beauty."