What were arches used for?

Related questions

1. How does an arch work?
2. What were aqueducts made for?
3. What are aqueducts made of?
4. Why is the Pont du Gard famous?
5. How many aqueducts are there in the world?
6. Why is an arch stronger?
7. Why do arches work?
8. What is an example of an aqueduct?
9. How does an aqueduct carry water?
10. What does the arch stand for?

Tags

1. #using
2. #arches
3. #explore
4. #provided
5. #result
6. #water
7. #could
8. #weight
9. #romans
10. #strong
11. #substance
12. #support
13. #cities
14. #durable
15. #architects
16. #which
17. #roman
18. #build
19. #concrete
20. #aqueducts
21. #massive
22. #freed
23. #created
24. #structures