This former Indiana quarry has been transformed into a park and SCUBA site where divers can explore the drowned mining equipment.

The lynching and burial site of America's first train robbers.

This multisensory alley has the ability to remind bustling citygoers to stop and smell the roses.

Locals dubbed this abandoned abode the "gingerbread house" because of its odd architecture.

This former office building has been transformed into an immersive music venue and art space.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

Nature and art meet in this curvy creation

One man's vision and a labor of love of many.

The first spinning jail built in the United States is the only one that still turns.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

Symbolic attempt to overcome the issues of life.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

The longest navigable underground river in the United States is home to countless blind and albino animals.

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

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

Cemetery featuring rare glass-fronted columbarium.

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

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

Internationally known record store and purveyor of "dusties."

A monument to the art of slicing people open.

A lush green oasis in the middle of Chicago.