This abandoned stepwell is one of the largest, deepest, and certainly one of the creepiest in India.

A storybook European village in Berkeley.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

The largest earthwork effigy in the world.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

A suspended garden, now gone, once hung in the middle of this abandoned church.

What is it about mushrooms that makes people wish they lived inside of them?

A memorial for an outsider theorist who believed that the planet is actually hollow.

A castle built by an eccentric medieval enthusiast in rural Ohio.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

A store that sells all manner of bones, insects, and animal curiosities.