Walk through a fairytale in Tuscany.

This large, circular tomb is the final resting place of the first emperor of Rome.

Virgil's many-mouthed gateway to the underworld.

The "Great Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

A huge enchanting public park just outside the ancient walls of Rome.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A Nesting Doll of Churches.

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

These "anatomical machines" are only one of the many strange items in this Italian crypt.

Ruins of a 10th century church tucked away deep in a botanical garden.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

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

A Milanese café entirely designed by the American director Wes Anderson.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

A fairy tale castle in modern Rome.

Architectural monsters are devouring this palace's every door and window.