Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

This shop specializes in oddities and Victorian-inspired wonders.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

A land of debatable treasure.

A unique solar-powered pottery studio and gallery in the desert.

Singing sand that stands as the final remains of an ancient lake.

Mine your own precious stones.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

An acoustic anomaly with a mysterious cause.

The world's longest known cave system.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

Rippling sand dunes frozen in the Arizona rock.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

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

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.