A surreal, interdimensional shopping center and portal to another universe by Meow Wolf.

A replica that won't float away.

This spot along the 23.5 degree north parallel marks the northern boundary of the tropics.

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

The unusual patterns in this rock formation result from two distinct modes of weathering.

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.

This is one really big nut.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The highest point in Texas is capped by a big silver pyramid.

Steep canyon walls hide a forested oasis in the West Texas desert.

Mysterious glowing orbs float through the desert night.

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

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.