What are aqueducts made of?

Related questions

1. What is an example of an aqueduct?
2. What is being arch?
3. Who owns the California Aqueduct?
4. What were arches used for?
5. What is an arch explain?
6. Where did the word Aqueduct come from?
7. Why was Pont du Gard built?
8. How does an aqueduct carry water?
9. Why do arches work?
10. What are the parts of an aqueduct?

Tags

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2. #structures
3. #being
4. #volcanic
5. #various
6. #still
7. #visible
8. #stand
9. #stone
10. #aqueducts
11. #these
12. #piece
13. #today
14. #roman
15. #cement
16. #special
17. #system
18. #engineering
19. #brick
20. #ancient
21. #combination
22. #pozzuolana
23. #capacities
24. #built
25. #testament
26. #water