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

This palatial building houses a remarkable gallery of papal portraits.

Famous landmarks and structures from across Italy fill this miniature park.

This Italian museum is a one-of-a-kind celebration of printing and type.

A 17th-century doorway in a small Sabine village is a portal into the mysteries of alchemy.

A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

The leathery remains of a woman who died in the 13th century now lie in a church named for her.

For hundreds of years, this huge figure has been blessing visitors before they explore his body.

A macabre anatomy museum tucked within an old Italian hospital.

A collection of wax anatomy by the great sculptor Clemente Susini.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

With its mine closed, this old village is starting to resemble a ghost town.

This Neapolitan exhibition hall grants weird and wonderful insight into the intricacies of human biology.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

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

This monastery built into a cliff hides a perfectly preserved hermit in a glass coffin.

This 18th-century dissection theater's frescoes display a gorgeous tension between the terrestrial and esoteric.

One of the most important yet well-hidden museums dedicated to the history of medicine.

This breathtaking monastery was established by Saint Benedict himself 1,500 years ago.

This Italian church is as beautiful as it is common, except for the real skulls decorating the many mannequins inside.

This ultra-modern burial building would have stacked the dead like a giant filing cabinet.

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.