Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

One man's homage to the sun continues to grow like a glass fractal.

America's most famous piece of self-built architecture.

Shop selling 500 flavors of soda has something for everyone.

Resting place of Hollywood's immortals is also site of summer film screenings.

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

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

The legendary building that needed ghostly approval before being built.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

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

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

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

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

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

World's largest collection of serial killer artwork and other macabre exhibits.

The blinking light atop the iconic landmark has been sending secret messages for decades.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Seemingly unremarkable items like empty sushi trays, chef hats, and freshness stickers are being preserved so future generations can look back on this beloved cultural import.

This restaurant has been a haven for D.C.'s LGBTQ community since the 1950s.