In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

Rural churches in the middle of nowhere with religious frescoes by famous artist.

The secret city built by the Manhattan Project.

Enormous lake at the bottom of a unique cave system.

An oversized metal construction of Billy Tripp's moods going through life.

North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

A waterfall and cave near Arroyo Seco that inspired the writings of D. H. Lawrence, Willa Cather, and Mabel Dodge Luhan.

Ute tour guides have been sharing the ancient dwellings and rock art inside this large park with visitors for more than 40 years.

A riverside tiny house with books and other treasures galore.

Legends surround this jagged rock formation in the New Mexico desert.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

A unique geological area spiked with wind-carved rocks that resemble teepees.

On the edge of the Valles Caldera National Preserve, these rock formations create an eerie landscape.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

Abandoned silver mine strewn with wrecked and twisted structures.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.