Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

Astounding collection of coin-operated games and automata.

The home of one of California's most important horticulturalists wilts amidst a lovely park.

A popular winter vacation destination for migrating monarch butterflies.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

In which a local geological marvel becomes a quaint roadside attraction.

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

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Two insane asylum bodies embalmed by an amateur.

One man's ambition created this psychedelic log home.

Explore 10 acres of environmental sculptures.

An eclectic trailer park retreat in the middle of the California desert.

While exploring the desert, you can stop by the home of a fictional heretic from a parallel universe.

Mysterious rocks that ring musically when struck.

The second-deepest known cave on Earth, hidden in an extremely remote mountain region.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

An abandoned castle owned and ignored by Masons carries a cursed history.

Spies, love letters, and ghost stories have all left their mark on this home-cum-museum.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

A formerly abandoned mental institute, now back in business.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.