Portlandia is the second-largest copper repoussé statue in the United States.

A beautiful 62-acre Catholic shrine and botanical garden.

A heavenly experience, right here on Terra Firma.

Private collection of art inspired by cabinets of curiosity.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

The seamy, underground secrets of Portland's criminal past.

A celebration of capitalism in Midtown.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Tucked in the back of this amazing antique store is an important piece of medical history.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

The 40-foot-tall votive candle is the largest of its kind.

The summer home of the largest colony of bats in the world.

The only museum dedicated to the history of the "Magic Lantern," a medieval slide projector.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

A rusted metal giant pays tribute to Birmingham’s industrial past.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.