Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

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

An unusual geological feature towers over the remains of a dark episode in United States history.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

An architect's childhood fantasy treehouse made real.

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

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

At the time of its completion, it was the tallest dam in the world.

One man's ambition created this psychedelic log home.

This town is home to the world’s largest arch constructed entirely of elk antlers.

This rustic old building is said to be the most photographed barn in America.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

America's most famous piece of self-built architecture.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

This enormous World War II relic is one of the largest wooden structures in the world.

The oldest home in Huntington Beach, the farmhouse is a monument to the region's pioneer past.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

A replica of the first public theater built in California.

The California capital city once stood 10 feet lower than it does today.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.