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

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Most-visited and most-photographed slot canyon in the American Southwest.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

See massive fossils that are over 200 million years old in northeastern Arizona.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The highway's southernmost spot is a beloved local attraction.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

A fitting attraction for the corn capital of the world.

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.

A cemetery housing wild west legends in South Dakota.

The first declared National Monument in the United States.

These markers are used to document elevation changes around the famed dam.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.