This vast masterpiece of Moroccan architecture spreads across 20 acres.

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

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

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

Despite many attempts to finish this overpass, it has been abandoned since the 1970s.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

An ancient necropolis of magnificent tombs.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

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

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This small chapel is built of human bones and decorated with a golden skeleton.

The extravagance of Portugal’s "Pink Palace" resulted in a noble title being awarded to its owner.

Perhaps the most spectacular grotto along the Algarve coastline.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

The holes in this wall provide a glimpse into Jewish life in Budapest, both past and present.