Original Source : Shelagh Walsh, Canada
Materials: Toothpicks and lots of miniature marshmallows
The Leaning Tower is one of the three parts which make up the Cathedral of Pisa. it was built over 700 years ago and today it leans over more than four meters.
Give each team a supply of toothpicks and marshmallows and challenge them to build the Leaning Tower of Pisa. See which group can build the tallest, skinniest and the one which leans over the most without actually falling over.