This plaque tells the story of an event that took place in an imagined parallel universe.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

New York City's only preserved family home from the 19th century.

A historic Masonic building overlooking the Puget Sound.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

A (slightly) grownup take on the classic retro arcade.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

This abandoned mine and power plant was built atop land once given to Revolutionary War soldiers.

The farming museum contains an extensive taxidermy collection, including the world's largest stuffed horse.

This abandoned school has had many lives since the early 1900s, and all of them doomed.

This abandoned amusement park was built on a site with a dark history.

This whimsically unique butterfly farm focuses solely on creating habitats for the gentle insects.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

The world’s largest underground marble quarry is hiding in Vermont.

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A peaceful international sculpture garden in upstate New York.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

This once-private estate is now a dreamy, meditative garden that's open to the public.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

The only certified Trappist brewery outside of Europe hides in the central Massachusetts hills.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.