A popular rock that acted as a waymarker for American pioneers.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

One man's ambition created this psychedelic log home.

Memorial stone for GWAR vocalist, depicted in his iconic costume.

The site of Martin Luther King Jr.'s arrest as he attempted to have lunch.

St. Augustine's record-setting narrow street was designed to protect against pirates.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Under a playground is a little-known sealed train tunnel that likely contains the bodies of workers trapped by cave-ins.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

Go take a picture with the inventor of the daguerreotype photographic process.

The house where John Wilkes Booth conspired with his co-conspirators.

The trials and tribulations of marking Poe’s grave.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Where beautiful signs live on forever.

One Confederate statue that accurately reflects the ugliness of its subject.

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

A lush green oasis in the middle of Chicago.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.