Watch the video-track and answer the following questions:
5. What river does this bridge cross?
6. When was it built?
7. Are people allowed to visit towers?
8. What can people do there?
9. How long was the Tower Bridge under construction?
10. How many contractors were involved into the process of construction?
11. How many workers took part in the construction?
12. What are the interesting facts about the Tower Bridge? Complete the following table:
| 1977 | |
| The Tower Bridge was opened to the public for the first time. | |
| 1993 | |
| The Tower Bridge celebrates 35 years of welcoming visitors to its exhibition. |