A modern sliver of architecture in Roma.

A lover's walk between hilltop towns, decorated with graffiti love notes.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

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

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

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

Romans built the world's tallest artificial waterfall in 271 BC.

The Pope’s secret escape route.

Walk through a fairytale in Tuscany.

One of seven Jewish catacombs in Rome and one of only two open to the public.

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

A Nesting Doll of Churches.

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

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

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

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

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

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

Jesus' footprints and the first catacombs in the world.

Five candy-colored villages on the Italian Riviera.

This 16th-century monastery has been turned into a surrealist architecture compound.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.