An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

This mural celebrates the early integration of a New Hampshire baseball team.

One New Hampshire alleyway has become home to a public gallery of feline art.

This riverfront statue honors the inventor of the first video games ever sold.

This museum explores the history of policing and is also home to a very popular taxidermied duck.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The house and graveyard used in the Stephen King spine-chiller.

The eccentric mansion of one the most popular horror authors of modern times.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

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

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

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The trials and tribulations of marking Poe's grave.

Eighteen miniature death-scene dioramas.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

Inside this store, a mysterious statue draws visitors from the world over.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

With its vaulted ceiling and gilded details, this University of Washington library would feel right at home inside an old palace.