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

This one-of-a-kind convent boasts a kaleidoscopic exterior of stars and double-headed eagles.

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

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

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

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

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

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

This city's cultural center is in a restored Spanish colonial home from the 1800s.

One of Mexico's youngest major cities still holds on to this structure representing its short modern history.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

Beach instrument turned bed and breakfast.

An island graveyard with spectacular views of the Caribbean.

This replica medieval European village in the Dominican Republic was built by a Hollywood set designer.

A remarkable range of flora and fauna are represented in this Dominican nature preserve.

A shrine on the shores of the Tigris.

The oldest Christian monastery in Iraq until ISIS blew it up twice and then drove over it with bulldozers.

This remnant of an ancient Persian city is considered to be the world's largest single-span brick vault arch.

This former monument to an invented Iraqi victory was turned into a military camp during the subsequent invasion.

A 2200 year old vessel may have been able to keep a charge.

9th century Abbasid mosque, damaged in modern warfare.

This road earned its macabre nickname after hundreds of Iraqi troops died along it in 1991.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

The tallest mountain in mainland Netherlands isn't actually very tall.