A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Largest collection of mounted dinosaur specimens in the world.

A circus legend leaves an unexpected endowment.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

The world's largest version of this iconic puzzle cube is located in Knoxville, Tennessee.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

The first KFC is on the National Register of Historic Places.

Moonbows over Kentucky.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

Once disputed as the largest sundial in the world.

More than a century old, this trading post resides in the Navajo Nation.

A sharp bend in a dramatic river canyon cut through red rocks.

The first declared National Monument in the United States.

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

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

This geothermal hot spring hides beneath a slowly growing mineral dome.

In 1847, Brigham Young climbed this hill to survey the Salt Lake Valley and saw a fine place to build a city.

Pyramid home to an obscure religious group that practices modern mummification.

This historic national park is covered in the stunning ruins of red rock pueblos.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This oversized flute-playing Ancestral Puebloan deity is also a landmark of Southwestern kitsch.