This curious fresh and salt water lake holds a secret that draws in deep divers from around the world.

A magically clear, blue river that seems to spring from nowhere.

This psychedelic tourist trap is a leisurely descent into madness.

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

The most famous location in China was home to whole dynasties worth of imperial rulers.

This abandoned fishing settlement may well be the greenest village in the world.

A part of the world's largest marsh seems to be growing bright red Martian grass.

This fantastical house shaped like a seashell brings aquatic design to architecture.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Every equinox this Maya pyramid puts on a spooky ancient light show.

66,000 pieces of art, donated by one of the world's richest men.

These azure waters were thought to lead to the Mayan Underworld.

Fire meets ice at the southernmost volcano on Earth.

One of the world's southernmost bars.

Natural time capsule containing an alien ecosystem.

The world’s largest underwater sculpture is found just off the coast of Nassau.

Founded as a refugee camp, now a popular tourist spot.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

An endless sea of white conical domes.

Ozymandias’ time-keeping temple.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

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