The first declared National Monument in the United States.

A fitting attraction for the corn capital of 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 world's largest underground iron ore mine.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Christ's blood allegedly preserved in a Belgian town.

The rocks in this arid basin leave trails of movement behind them.

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.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

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

Odd outsider art installations surround a Gold Rush-era ghost town.

"Only the devil could play golf here."

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Marta Becket's hand-painted theater in the desert.

The drama of nature in full effect in this Nevada State Park.

A giant open-air sculpture made of over 200 full-sized boats.

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

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

An exotic wildlife habitat right off The Strip.

What looks like a birch tree smushed between two pieces of glass often confounds commuters.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.