Build seven 5' long replicas of real world bridges, 2 at a time. Includes 2282 pieces to support 6-8 students working in teams of 3-4. Models include replicas of the Firth of Forth Cantilever Bridge (Edinburgh, Scotland), Tower Bascale Bridge (London), Golden Gate Suspension Bridge (San Francisco, CA), Chesapeake Bay Beam Bridge (Virginia Beach, VA), Columbia River - Astoria Truss Bridge (Portland, OR), Sydney Harbor Arch Bridge (Australia) and the Dames Point Cable-Stayed Bridge (Jacksonville, FL). Comprehensive teacher's guide included. Comes packaged in 2 strong plastic storage cases.