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

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

A long-buried ancient ruin unearthed right in the middle of the city.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

The oldest-known example of a historic architectural style recognized by UNESCO.

Southern Italy's spinning top village.

This fishing contraption sits on top of a series of spindly wooden stilts.

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

Three underground crypts and a pointed arch under the bell tower make this cathedral unique among Romanesque churches.

A dead saint, a deadly poison, and a mysterious holy ooze.

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

A medieval, mosaic-lined baptistry built by a heretical Christian sect.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

Exchange a book at the entrance of this medieval Lovere alley.

Distressing images of the Last Judgement adorn the walls of this medieval sanctuary named for St. Patrick.

A medieval fresco which reminds visitors that death will come for us all.