The remains of this 2nd-century Roman temple are incorporated into a modern building.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

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

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The yawning maw of this pagan visage is said to bite off the hands of liars.

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

2300-year-old Roman road connecting the empire.

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

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

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

Southern Italy's spinning top village.

The tallest statue in Italy is also one of the world's tallest statues of Jesus.

The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

Constructed during the 1960s, this bridge is still the highest in Italy.

The only visible remains of this ancient Greek underground temple is its roof protruding from the earth.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

Unscathed for almost 2,000 years, the best preserved Roman triumphal arch is in a small southern Italian city.

During World War II, the Shroud of Turin was secreted to this remote southern Italian complex.

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

Nobles would stage mock naval battles on this large lake at the Royal Palace of Caserta.

A sulfuric hellscape in southern Italy.

A rococo room covered entirely in porcelain originally constructed for another royal residence.

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

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.