3. Some bridges are made out of stone.

4. This stone bridge crosses a pond. What would happen if we did not have a bridge here? Why?

5. This stone bridge crosses a river.

6. Some bridges are made out of wood. How has this bridge been made to be strong?

7. Iron bridge at cragside, Northumberland Some bridges are made from metal. This very old bridge is made from Iron.

8. This is a concrete bridge.

9. Thomas Telford's Suspension Bridge across the Menai Straits, North Wales. This is a suspension bridge.

10. Tower bridge This is a famous bridge in London.

11. Sydney harbour bridge This is a famous suspension bridge in Australia.

12. Brooklyn bridge This is a famous suspension bridge in America. It has stone pillars.

13. Middlesbrough transporter bridge This is a transporter bridge.

14. This road bridge crosses a ravine.

15. This is a pedestrian bridge.

16. This is the Tyne Bridge in Newcastle.

17. The Tyne Bridge was built a long time ago. 1928

18. 1876 This is the Swing Bridge in Newcastle. It is a hydraulic bridge. It can turn. It is older than the Tyne Bridge.

19. This is the Millenium Bridge. It is much newer than the Tyne Bridge. The Millenium bridge can tilt to let the boats through.