The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

Two bronze wolves atop this large rock honor the "Wolves of Tuscany" brigade of World War I.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

Walk through a fairytale in Tuscany.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

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

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

This building has a giant piercing through one of its corners.

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.

A fake medieval village in the middle of Turin.

The astonishing collection of an infamous criminologist.

A submerged archeological park still holds the wonders of a Roman Sodom.

A visionary Italian architect created an impressive cluster of concrete structures for a family's private tomb.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A 16th-century horror show built in a lovely Italian garden.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

An alchemist's "magic door" stands in the middle of a Roman park.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Renaissance villa and gardens complete with a tormented colossus.

Abandoned medieval hill town.

This community on a small Venetian island has taken to painting their houses in bright neon hues.