"X" marks the spot of an echo chamber in the middle of a plaza.

A large camera obscura, constructed entirely from digitally fabricated components.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

Rotting dome home spotted near Chapel Hill, North Carolina.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

One man's ambition created this psychedelic log home.

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

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A beautiful geyser under environmental threat.

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

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

High in the Rockies the third largest statue in the U.S. opens her welcoming arms, and lights up the night sky.

A wild west land agreement was etched right onto this historic Idaho stone.

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

A public fountain that spouts "health water" from a nearby spring.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

Canyon walls shrouded in ferns.