This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

This storied music venue was once a tavern that housed an Italian Anarchist book club and prohibition parties; today it's a community space for artists and musicians.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

A wonderfully curated used bookstore in an airport.

This striking art museum holds an amazing series of curiosity cabinets.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A unique botanical garden housed in three giant geodesic domes.

A place to eat for on-the-run agents and espionage enthusiasts.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

Art from the latest counter-culture; kids who dye their hair blue and believe the future will be a post-apocalyptic water world.

An invitation-only museum of items natural and bizarre, arcane and exotic.

This shop specializes in oddities and Victorian-inspired wonders.

Furniture tries to escape an abandoned building in San Francisco.

This colorful boulder serves as a canvas for political statements and artistic expression.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

Only hotel where you can legally launder money.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Radioactivity still cause for concern at this urban explorer's paradise.

America's oldest Italian restaurant is a San Francisco institution.

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

A man-made island in scenic San Francisco Bay.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.