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.

An obelisk commemorates historic floods that hit two towns along the Red River of the North.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

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

This towering wooden Sasquatch was carved with a chainsaw.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

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

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

Exhibits from an island in Lake Michigan are preserved in this hand-built cabin museum.

This pebble beach is so beautiful that taking its rocks is against the law.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

Walk up a ramp through a forest for panoramic views of Lake Michigan.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The king of U.S. high points towers over every other peak on the continent.

The only road through the heart of Glacier National Park.

Drift through decades of high desert music history at this funky hometown museum.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

Just a man taking his prehistoric pet for a stroll.

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

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.