No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

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

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

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

This metal tower in the desert provides views of a handful of Nazca geoglyphs.

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.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

More stones than Stonehenge, all scattered within a windswept landscape sure to enchant 'Outlander' fans.

A perfectly preserved hill village where the buildings are painted like white lace.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

This unique temple complex remains off the typical tourist trail.

This concrete amphitheater offers an unforgettable view of one of Mexico's most beautiful canyons.

Mysterious hillside with a continuously burning natural fire.

A gigantic collection of teeny, tiny books.

This striking icon of the disputed Republic of Artsakh caused a stir at a Eurovision Song Contest.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

Despite being tiny and rural this Georgian airport looks like a sci-fi boondoggle.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.