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

An artsy hidden staircase leads to breathtaking views of San Francisco.

A psychedelic labyrinth on the San Francisco bay.

A terrific purveyor of natural history objects and curios.

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

A huge musical instrument played by the ocean.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This former luxury resort in Kaua'i is now an abandoned relic.

What remains of the summer palace of King Kamehameha III.

A Hawaiian stairway to heaven—that you can't climb.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

An ode to one of the first concerts broadcast via satellite.

Inside, visitors are treated to the rich history of sugar farming and its impact on Hawaiian society.

This airstrip atoll is uninhabited by humans, but absolutely full of birds.

A Japanese pilot crash-landed on this Hawaiian island after the Pearl Harbor attack and terrorized locals for a week.

This tiny Hawaiian island is slowly coming back to life after being bombed during naval training exercises.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

The spot where the namesake of the Douglas fir met his mysterious end on a Hawaiian volcano.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

This unusual lava tube spouts seawater during high surf.

This ancient Hawaiian henge may have been an early star chart.

This WWII plane died a quiet death, and is now a garden eel playground.