A chaotic collection of coin-operated slot machines designed to delight and disturb in equal measure.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

Home to an apple tree that can produce 25 different varieties of fruit.

This unique tower has been home to malaria-fighting bats for 100 years.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

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

An indigenous ethnobotanist runs this brunch spot celebrating Australia’s native flavors.

An all-female order shares an ancient culinary art with visitors at their mountaintop monastery.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

Located in a Civil War era building, this café is engrained with the spirit of Edgar Allen Poe.

142 ceramic steps become a mosaic once a year.

Italian cave with exceptional acoustics and an unsavory history.

Windblown rock formations in an ancient Roman quarry.

Mysterious tombstones thought to be remnants of Atlantis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A posh members-only club with a literally dramatic history.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

The saddest little diner in New York.