Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

The most beautiful Taco Bell in the world even has surfboard parking.

Steinbeck's old stomping grounds, immortalized in Cannery Row.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

Fake rail crossings mark the site of an influential doctor's demise.

A tree grown from astronaut seeds which were exposed to cosmic rays.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Sitting atop San Francisco's tallest hill, a cross honors the victims of the Armenian genocide.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

This painted marvel is San Francisco's 400-foot ode to urban biking.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Golden Gate Park's historic collection of plants.

The miraculous hydrant that saved the Mission District in 1906.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Three columns of volcanic rock shoot out of the ocean.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.