Location 4: Drawbridge
Drawbridges are only necessary when tall ships and boats cannot fit under a bridge. This river gorge is a half mile deep. Ships will have no problem passing under this bridge. Try again!
Building Big Home | Site Map | Labs | Databank | Glossary
Bridges | Domes | Skyscrapers | Dams | Tunnels
Local Wonders | Who Builds Big? |
Educators' Guide | Shop
This Web site was produced for PBS Online by WGBH.
Web site © 2000-2001 WGBH Educational Foundation.