This residential door allows San Francisco muggles a glimpse at the wizarding world.

A library and museum dedicated to typography.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

Golden Gate Park's historic collection of plants.

Natural rock water slides hidden in the remote forests of northern Idaho.

Authentic gondola hanging from the ceiling, notable mural in the back room.

Medical and zoological curiosities for sale.

Where a great scandal unfolded with a famous female revivalist at its center.

Though the original building has been demolished, these massive bronze doors were saved.

A black and white mural stands out from its psychedelic surroundings.

"The greatest unknown literary treasure in Los Angeles."

A quirky collection of figurines backdropped by city views is hidden next to a popular restaurant in the Hollywood hills.

A little barn in the middle of the city preserving Hollywood treasures since 1985.

Los Angeles's oldest cemetery allows visitors to trace the history of this proud city.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

This hands-on math museum believes in turning concepts into constructs.

The art and history of the velvet painting are on full display in this Los Angeles museum.

The first all glass and steel residence in the United States.

These artworks take you traveling to mythical medieval Europe, the politicized grape fields of 1960s California, and deep below sea level.

A lonely Gondola stuck on a traffic circle sits in a spot where it once would have floated down the Grand Canal.

The remains of the first punk club in L.A.

This glamorous old building is said to have inspired the Tower of Terror.

A library of rare occult books in Los Angeles.

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