The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Belly up to the bar in Cowtown, don't forget to buy some boots.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

This collection of bronze hands comes from astronauts, presidents, baseball greats, and more.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

A Prada store in the West Texas desert that is never open for business.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

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

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

143 feet of leaping muskie whose mouth can be used as a wedding venue.

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

An oddly poignant roadside attraction celebrating American folklore.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

The first declared National Monument in the United States.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

A massive volcanic plug is now a protected area that hosts a number of bird species.