A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

142 ceramic steps become a mosaic once a year.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

The history and future of cannabis.

The world's only museum devoted to the wonders of fluorescence.

Cat art as far as the eye can see.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A curious collection dedicated to human and animal anatomy and pathology.