Remnants of a forgotten 1920s speakeasy and Prohibition-era murals were discovered in its basement.

An abandoned Cold War missile radar site.

The sole surviving relic of the San Francisco neighborhood cobbled together from old horsecars and streetcars.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

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

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

This 19th-century church is now a popular roller rink.

Tiki luxury on Nob Hill.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

An art collective teaching the more fiery, metal-y art forms.

A unique museum dedicated to the Gullah-Geechee people, housed within an old oyster cannery.

At this California chicken ranch, four bucks will get you 18 eggs and a chorus of dancing animatronic poultry.

A Borgesian work of art that may blur the line between fiction and reality a little too convincingly.

This restaurant offers the original California cuisine.

Once a year, thousands of naked cyclists flood the streets of a Seattle neighborhood.

Always a new use for this old building.

This Cold War siren is one off the last of its kind still standing with its immensely powerful original horn.

Where else would a linchpin of post-colonial Native American cuisine anchor the menu but a museum?

An allegedly haunted mansion with a tragic, tawdry past.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

This sweet Southern elixir comes from what may be the oldest grape vine in North America.

Made from local Irish moss, this pie is served only in Prince Edward Island's potato museum.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.