What else would you call a playground hidden in Alabama's oldest and largest cemetery?

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

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

Elvis's own personal tropical hideaway.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

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

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This cemetery is all that remains of a school for "wayward" girls.

Cold War missile launch site which has been converted to a public park.

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

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

An enormous park-like oasis, full of famous Chicagoans' graves.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

This tiny historic jail along Route 66 is the perfect fit for exactly one criminal and their partner-in-crime.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Avoid gangster interaction while window-shopping.

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

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

This abandoned cemetery has a dark past of bodies buried over bodies.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

Cemetery featuring rare glass-fronted columbarium.

Where beautiful signs live on forever.

A lovely hidden waterfall right off the highway is well worth a stop.