A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

Hidden in the Chihuahuan Desert resides an amazing collection of petroglyphs.

Colorful Native American paintings are hidden within this small cavern.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

An abandoned mine where dreams of quicksilver trickled away over 75 years ago.

See massive fossils that are over 200 million years old in northeastern Arizona.

Steep canyon walls hide a forested oasis in the West Texas desert.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

The remains of an early 1900s dude ranch that operated until the 1970s.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

Four hundred granite steps were built into this massive rock by the National Park Service.

The unusual patterns in this rock formation result from two distinct modes of weathering.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Quite simply the largest tree in the world (by volume).

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

One part local history, 99 parts gruesome haunted house.

Home to three historic ships from the age of Vikings.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Europe’s oldest natural human mummy.