These eerie outliers of the lightning bug family glow a mysterious blue color.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Make your reservation to have coffee with some kitties.

Ride the subways of yesteryear.

World-famous, Pink's still manages to keep its prized cult fetish status.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

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

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

An acoustic anomaly with a mysterious cause.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The angel of death appears to weep black tears at this grave marker.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

The largest self-built castle in the U.S., six decades in the making.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

This geothermal hot spring hides beneath a slowly growing mineral dome.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The world's longest known cave system.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A heavenly experience, right here on Terra Firma.