One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

This racially troublesome eatery thought a new coat of paint could erase its offensive connotations.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

A small town museum honors local WWII veterans and the queen of pop who put it on the map.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

Built to bless whalers before their voyages, this Massachusetts church now features a ship-shaped pulpit.

Mysterious stone tower featured in many alternative histories of the New World.

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

Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

A singular collection of hand-built art deco cars are held in a building with style to match.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

You thought Santa Claus didn't exist, but it turns out you were wrong.

Moonbows over Kentucky.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This erect, phallic geological spire wasn't always named so domestically.

The first declared National Monument in the United States.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

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