Scavenger hunts help people to get to know a city intimately, which may prove valuable when put in charge of hiding celebrity wax figures for the citywide celebrity-wax-figure hunt that takes place each Easter. Prepare for this venerable American tradition with this Groupon.

$25 for Race Entry for One to The DC Challenge: The Ultimate Urban Scavenger Race ($50 Value)

Held on Saturday, April 20, the one-day race sets teams scampering through the city as they solve clues, chart the best course, and discover new corners of their burb. Racers complete their scavenging adventure at the Finish Line Festival, where they flaunt finisher medals and raise their glasses in celebration with other participants amid live music, food trucks, drink options, outdoor games, and a costume contest. The race starts at 1:30 p.m., but participants can show up from before or soon after the whistle to pick up prerace packets and change into a uniform that's half track-and-field athlete, half Columbo. The DC Challenge partners with Back on My Feet, with which a portion of the race's proceeds are shared. Although this Groupon covers entry for one participant, customers can buy up to 10 Groupons as gifts for teammates.