These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

A rare kind of blue bear can be found chiefly in the national park that shares their name.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

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

Massive mounds of golden sand look like a desert landscape randomly plopped in an Arctic forest.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

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

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

The fifth-longest natural arch in the world, and the longest outside China.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

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

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

No Gordon Lightfoot song, only a barebones monument to greed.

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.

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

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.

Curios, scientific antiques, oddities for sale.

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.