A geological mystery on Camelback Mountain.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The celebrated eyesore created by starry-eyed sweethearts.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Go surfing on this urban wave, "hacked" by local surfers.

The prototype for all Nazi concentration camps.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

A "Minnesota-style" pizza parlor in the Scandinavian heart of Seattle.

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

A wall of chewing gum moonlights as collective art.

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

20,000 pieces in a Frank Gehry-designed building.