A fortified city, home to a remaining population of five families

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

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

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

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

These ancient ruins hide in plain sight next to a dessert shop.

Underneath one of the region's most historic roads lies the home of Plato's successor.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Legend says this sacred tree was a gift from goddess Athena.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

This Ottoman-era church is hidden amid a busy tourist area.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

The summer tourists on these cliffs are thousands of seabirds.

The largest whale museum in Europe allows visitors to walk among life-size giants.

This monument to one of the largest science fiction games of all time bears the names of hundreds of thousands of players.

This tiny museum's sizable collection is jammed into a former underground public toilet.

This oceanside Reykjavik spot is speckled with recycled sculptures and large stones.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

A large replica of a monumental Roman inscription is located on the side of this museum.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

This large, circular tomb is the final resting place of the first emperor of Rome.

This basilica is dedicated to two saints, one of which is known more for his famous quote.