Bikes + scavenger hunt + Capitol Hill + potential to win awesome prizes = ridiculously fun Saturday? If you think so, sign up for Hill and Go Seek this Saturday evening at 5 PM. For $20, teams of two cyclists can compete by visiting points of interest and performing tasks at checkpoints. Points are awarded for speed, checkpoints completed, and creativity, and the winning teams will be announced at the after-party at the H Street Country Club. Prizes include Nationals tickets, t-shirts, WABA and Capital Bikeshare memberships, and gift certificates to various Capitol Hill restaurants. You can register online now, or show up as early as 3 PM on Saturday to sign up.