Golden Gate Park's historic collection of plants.

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

Home to the "Circus" trees created by Axel Erlandson.

Lucha Libre (Mexican Wrestling) themed taco shop.

A bigger-than-life pun that has become a beacon of altruism.

The unbelievably opulent home built for an infamous newspaperman.

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

Travelers exchange letters with woodland creatures at this mini post office.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

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

Canyon walls shrouded in ferns.

Quite simply the largest tree in the world (by volume).

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Olfactory delights in San Francisco's Botanical Gardens.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A hotel and restaurant serving as the mecca of kitsch.

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