The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

The final resting place of the poets Shelley and Keats.

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

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

Rome's semi-secret peephole vista is also a former Crusader stronghold.

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

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

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

This curious, round temple is the oldest still-standing marble building in Rome.

This ancient market is often referred to as the oldest shopping mall in the world.

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

Legend said this huge, gnarled tree sheltered the saint during a storm.

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

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

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

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

A blend of nature and art awaits visitors to this park.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.