At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

Smooth basaltic rocks tell a tale of ancient glacial waterfalls.

A hard-to-reach oasis in a desolate corner of Death Valley National Park.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Deep vertical fissures like miniature slot canyons cut across the cemented volcanic rock of Black Point above Mono Lake.

This 252 step staircase offers stunning views of San Jose.

At night, this glittering musical tunnel draws skaters and photographers.

If you are looking for a used Russian battery, Chinese Ham Radio or other electronic oddities this Flea Market is a good place to start.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.

This odd California folly seems like it was almost designed to accumulate urban legends.

Exquisite irises bloom every spring in this hillside garden.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.