A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

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.

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

A huge musical instrument played by the ocean.

This Seattle joint serves food inside an old train car once used by FDR.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A walk through the historic city center, under the streets of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.

Shrine to Japanese water-goblins, complete with their preserved body parts.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The Giant Lemon of Lemon Grove.

Get fishing gear and craft beer at this restaurant on the pier.

This San Diego museum is dedicated to preserving women’s historic achievements.

San Diego's most historic and haunted home.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.