The best-preserved Roman small town in North Africa.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

An ancient burial ground believed to have been used for ritual sacrifice.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

This museum in the famously blue neighborhood of Sidi Bou Saïd showcases a traditional Tunisian lifestyle.

A small but charming botanical garden that contains many exotic plant species.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate tile work in this railway station tells the story of Portugal.

This giant sculpture made of trash is a critique of society's wastefulness.

The world's oldest bookshop still in operation.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The best place in the world to buy tinned fish.

Haunting graffiti left by prisoners of the Spanish Inquisition.

This uncanny fresco celebrating the "triumph of death" was split into four pieces to be moved to another museum.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

An abandoned shopping gallery built during Fascist Italy tucked in the center of Palermo.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

Every inch of this chapel is covered in craftsmanship from across the world.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

The only substantial part of Nazi Germany's formidable defensive line through Northern Italy that survives today, largely intact.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

Explore the quarry where the marble was sourced for Michaelangelo's David.

The naturally mummified body of a peasant girl saint.