The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

A one-of-a-kind collection of a unique medium.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A terrific purveyor of natural history objects and curios.

A huge musical instrument played by the ocean.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

An vast warehouse of everyday treasures in Berkeley, CA.

A private home built to resemble the shape of a microscopic creature.

A celebration of once forgotten materials.

Where the alchemists dream of transmuting base metal into gold was actually achieved.

Largest collection of mounted dinosaur specimens in the world.

Come for the speed, leave in love with the desert.

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

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

America's only nuclear missile silo open to the public.

The world's largest military aircraft cemetery.

A cabinet of curious mathematical models and old calculators.

An urban laboratory.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

A world-class observatory in the California desert.