This haunting monument honors the victims of 9/11.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

This Hindu temple in suburban New Jersey is the largest in the United States and one of the largest in the world.

The site of the daring river crossing that changed the course of the American Revolution.

Constrained by time and topography, this civil engineering landmark was constructed 100 feet above Starrucca Creek over the course of a single year.

A winding, cliffside stretch of road overlooking the Delaware River.

A pair of 19th-century granite markers symbolically record where the state boundaries of New York, New Jersey, and Pennsylvania intersect.

Oldest existing wire suspension bridge in the United States.

This downtown statue pays tribute to the Native American game that gave the city of La Crosse its name.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

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

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

Just a man taking his prehistoric pet for a stroll.

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

Calidum et Deliciose Succosum!

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

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

The first declared National Monument in the United States.

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

Examine the impact of the horse on Great Plains culture through exhibits on ranching, rodeo, and the Native American way of life.

One man's quest to save his town with a trail of record-breaking sculptures.

A true roadside icon standing on the same plains that the herds once roamed.

The world's largest Holstein cow.

In an alley behind a Fargo bar, you can roleplay as Mario while interacting with a popular street mural.