Former self-sufficient mental institution now a planned community.

Strange physical sensations and optical contradictions keep visitors coming back for more.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

The crumbling remains of a 19th century fortess.

This Birdsill Holly fire hydrant is the remnant of a very different type of hydration innovation.

The steel hull of a wrecked tug rests on Lobster Cove on Monhegan Island’s rocky southeastern shore.

A monument marks the beginning of the longest north-south road in the United States.

This mid-19th-century dugout was once home to a Swedish family as they erected their homestead.

This Wild West attraction is probably more fiction than history, but that doesn't mean it's not awesome.

Stories of sightless fish and ghostly cowboys are only a fraction of the legends surrounding this Kansas sinkhole.

Home to Hollywood history and a very special salt crystal.

A small burial plot formerly stranded in the middle of a road.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

This zombie-themed restaurant stands out in the heart of corn country.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

Once known as the Illinois Asylum for the Incurable Insane.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

A historic and oft-filmed prison stands in a Chicago suburb.

What was once the second largest steel mill in the US is now a sprawling complex of modern ruins.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

Years of archaeology, just chillin' by the water cooler.

The mayor made the declaration in 2004.