A crumbling hospital from the 1850s on Roosevelt Island.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

This abandoned prison castle has become an imposing gallery of graffiti art.

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

The beauty of urban decay, hiding some dark secrets.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Former hotel turned into haunted playground.

San Diego's most historic and haunted home.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

If astronomy had a ghost, it would look like this observatory.

Where hikers on the Tecumseh Trail can exchange a dirty sock for a free geode.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

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

Along this stretch of Indiana roadway resides a giant insect composed entirely of scrap metal.

More than 3,200 cookie jars line the walls and shelves of this little shop and over 1,000 salt and pepper shakers

Nature and art meet in this curvy creation

The bespectacled, cocktail-sipping pachyderm is a strange but fitting liquor store mascot.

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

The first artificial white water river course in North America cuts right through an Indiana city.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

The only freestanding table rock formation east of the Mississippi.

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

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.