Bangkok Outdoor Team building Activities Corporate events: Leonardo da Vinci‘s self-supporting arch bridge, also known as the emergency bridge. No nails, screws, rope, glues, notches, or other fasteners are holding the bridge in place just friction and gravity. This is an excellent exercise to use as a lead in to a project workshop or team meeting. It gets teams communicating effectively and listening to each other. In addition, this team challenge also develops problem solving skills and creative thinking.