A plaque honoring a Hungarian hero of Italy is hidden in plain sight in Palermo.

Italian cave with exceptional acoustics and an unsavory history.

Wedged between streets and buildings, this ancient Roman theatre could seat 7000 spectators.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

The hallucinogenic center of the ancient world.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

Breathtaking and huge 430 year old maps of Italy.

Roman ruins top white travertine terraces formed by ancient hot springs.

A charming beach town in Turkey captures all the colors of the rainbow.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

The largest masonic lodge in Cuba.

Neo-cave art on the macro scale.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Pilgrimage site for star-crossed lovers.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

An early 20th-century bullring converted into a modern shopping center.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

A diminutive statue that was inspired by the sculptor's own daughter.