For the next stop in Seattle, teams visited the famous Gum Wall, located in Post Alley just beside Pike Place Market. This unique attraction began in the 1990s when visitors and performers at Unexpected Productions, an improv theatre, started sticking their used gum on the wall. Over the years, it has grown to cover most of the brick wall throughout the alley. It was also named one of the top 5 germiest tourist attractions in 2009… gross. Despite this, the Gum Wall remains one of the most popular attractions in Seattle. The challenge was to take a picture of the team adding their own contribution of gum to the wall.