The remains of a ruined mansion memorialize the 1906 earthquake.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Olfactory delights in San Francisco's Botanical Gardens.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

This shop specializes in oddities and Victorian-inspired wonders.

A 140-year-old castle with underground caves hidden in San Francisco.

A huge musical instrument played by the ocean.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

An accidentally hidden library containing the ephemeral history of New York.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

A collection of colorful dinosaurs hidden in an actual rainforest.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

Commonly referred to as the most photographed Victorian home in the United States.

Experience the "opulence, grace, and grandeur of Eureka's most famous Victorian Inn."

A lighthouse built to save lives that took quite a few with its treacherous location.

Canyon walls shrouded in ferns.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

An optical illusion found amid a logged redwood forest.

This massive redwood tree has a hole in the base big enough to drive through.