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

This historic tower in the California desert promises visitors a "vortex of good vibes".

Thousands of turbines whir at the origin of North American wind power.

Oldest building in California still in use.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

London's smallest police station is barely the size of a phone booth.

Hear the quietest sound from across the dome.

Museum dedicated to the preservation of surf culture.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

Exotic feline breeding compound and conservation center.

Two insane asylum bodies embalmed by an amateur.