Huge stone depressions which may have acted as an Incan agricultural experiment.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

These abandoned ruins in the middle of Jaffna have withstood centuries of tumultuous power struggles.

Seven beautiful 1,000-year-old rock-cut Buddhist statues.

Pettah's beautiful floating market was once a stinky canal in a sketchy industrial area.

The ruins of this old church are slowing sinking into the sand.

One of the few places where inexperienced snorkelers can spot a shark.

An ancient stone fortress considered by many to be the eighth wonder of the world.

After an epic flood washed away its enslavers, this city has been part ghost town, part cultural wildcard for the past three centuries.

A paradisical gorge with rapids, waterfalls, and wildlife whose raw beauty is the stuff of CGI movies.

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

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.

The Uros people live on floating reed islands in lake Titicaca.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

A market for witches is hidden within a train station.

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

A hyper-remote desert cave dramatized in "The English Patient."

A huge museum of much more than just agriculture displayed in a princess's palace.

A strange aquarium with stuffed fish, and almost no water for them to swim in.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

Ancient Egyptian relief, claimed to depict an electrical light.