The ruins of an important pilgrimage destination for worshippers of a Maya fertility goddess.

This abandoned ship has remained in place since it ran aground in 1998.

Beneath an ancient wishing tree lies an underground chapel with 12th-century frescoes and catacombs dedicated to a lady saint.

Legend holds that St. Paul was flogged for preaching Christianity at this pillar.

While most shipwrecks are submerged, this ship in Cyprus ran ashore.

An ancient fortification lives on in this Chinese city.

The western-most fortress on the Great Wall of China has gone from a strategic stronghold to a kitschy tourist carnival.

Monks turned this mountain into a temple by digging grottoes, tunnels, and a huge pagoda-like hall.

Hundreds of caves filled with thousands of centuries-old statues and murals.

The field of tiny caves that mark this Chinese cliffside are each their own historic Buddhist temple.

Rock-cut caves and 7,000 Buddhist sculptures carved into the nearly sheer face of a sandstone mountain.

These layered sandstone mountains in China look like they are made of pressed crayons.

The shockingly unspoiled Peruvian tomb of the Lord of Sipan was once guarded by a footless warrior.

The outside of this exposed Moche pyramid is covered with striking colorful adobe friezes.

The depictions of slaughter are surprisingly detailed at this mysterious ancient site.

A 5,000-year-old city in Peru holds the remains of a stunning set of astronomically-aligned pyramids.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

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

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

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Did Inca children also slide down these smooth rocky slopes above Cusco?

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

A Christian monastery stands on what was once a holy Incan temple.