Intricate storybook scenes are tucked inside these shadow boxes, which are tucked inside a library in the Pocono Mountains.

It would take 35 firetrucks to fill this enormous glacial pothole.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

This jail which was in service for over a century is now open for curious visitors.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

This little museum in the town where zombies were born celebrates the living dead.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

This public space is speckled with the eerie remnants of a defunct amusement park.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

A mysterious inscription may hold a clue about the "Lost Colony" of Roanoke.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

This house proudly displays an interactive and continuously changing exhibit of lawn flamingos.

Fortifications built for a Soviet invasion that never came now sit abandoned in a losing battle against nature.

This imprint of an old computer keyboard has a unique backstory.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

One of the oldest seagoing boats in the world can be found at the Dover Museum.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This phallic temple was erected in the forest to honor the tragic death of a samurai lord's son.

Described by William Wordsworth as a "World of Wonder."

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.