A tunnel with windows, so you don't miss out on the impressive views.

An ode to one of the dirtiest jobs during the construction of the Boulder Dam.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A brothel nestled amongst ghost towns, with an abandoned plane wreck to greet you.

There's nothing creepier than a cemetery next to a clown motel.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

The farthest you can be in the contiguous U.S. from a McDonald's location.

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

A roadside collection of over-sized iron creations that are a bit more macabre than most.

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

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

A fitting attraction for the corn capital of the world.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

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

The highest bridge in America was built for an almost unnervingly small amount of money.

The largest self-built castle in the U.S., six decades in the making.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

Spectacular views await visitors to this lake.

The only road through the heart of Glacier National Park.

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

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

A beautiful geyser under environmental threat.

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