The longest fence in the world stretches over 3,000 miles to keep the dingoes out.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

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

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.

This simple home was the beginning of a long journey for the iconic Western film star.

The first declared National Monument in the United States.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

A library and shop devoted to the body, mortality, and bringing to light forgotten or neglected histories

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

On the Hudson resides one of the largest clocks in the world.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”

A real flying saucer, contracted by the U.S. Air Force.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This decommissioned DC-3 now forever points into the oncoming wind.

Home to three historic ships from the age of Vikings.