This abandoned amusement park was built on a site with a dark history.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

A sculptor's dream castle turned fantastical ruin.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

This woodland architectural installation acts as a camera obscura for the heavens.

These eerie outliers of the lightning bug family glow a mysterious blue color.

An opulent testament to the boom-and-bust history of industry in north central Indiana.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

A medical facility that has been kept frozen in time.

A replica viking ship from the Chicago World's Fair is still in dry dock in an Illinois park.

First planned industrial community in the United States.

Former hotel turned into haunted playground.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

A hollow cement depiction of time's inexorable effect on the human body.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.