The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

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 winged Maya figures are the subject of speculation and conspiracies.

Originally known as the State Lunatic Hospital at Norristown, this campus stands as a fascinating piece of medical history.

Home to the first child born to English colonists in North America, this colony mysteriously disappeared while waiting for supplies.

Perhaps the oldest vine in North America, this sprawling plant helps make a sweet wine.

A giant concrete churn carries the legacy of American resilience, unity, and greed.

Between 1930 and 1946, a tobacco farmer laid his beloved horses and mules to rest in this small patch of pine forest.

Striking, enormous gold-plated sculpture of Buddha installed in the 19th century.

These mosaics were created more than half a millennium ago and feature various animals.

A battle between nature and architecture in the Cambodian jungle.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

The prototype for all Nazi concentration camps.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

A fearsome dragon clings to a corner of Munich's city hall.

One of the few surviving "Wigwam"-themed motels.

Prehistoric animals decorate this popular outdoor park.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.