The first declared National Monument in the United States.

Every president in history is immortalized in bronze in downtown Rapid City.

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

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

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

Just a man taking his prehistoric pet for a stroll.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The city is full of whimsical portals to another world.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Possibly the smallest church in the world floats in the middle of a pond.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

A tomb with a window to ensure the interred wasn't buried alive.

Cryptid lake monster honored with its own monument.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

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

A very big rock just plopped down in the New England woods.

A gas station and a state sign commemorating the most famous claims of extraterrestrial abduction.

One car at a time please.

This large cemetery is known as the museum of granite sculptures.

A lonely memorial to the Challenger Space Shuttle, honoring the astronauts who died in 1986.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

This rare polygonal meeting house is rumored to be built in a circle so that the devil has nowhere to hide.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.