Traditional 11th-century outdoor tannery.

The designated Jewish quarter in Fez dates back to the 15th century.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

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

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Macabre astrological automaton clock dating to the late 1400s.

These tiny statues form a terracotta army from China's Han dynasty.

130 replicas of world wonders squeezed into just 118 acres of space.

An Inca spa, military outpost or maybe… both?

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This stone complex marks the urban center of a lost civilization.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.