11 Ancient Water Clocks of Antiquity

11. Islamic Water Clock

10. Korean Water Clocks

9. Mayan Water Clocks

8. Japanese Water Clocks

7. Babylonian water clocks

6. Roman Water Clocks

5. Persian Water Clocks

4. Indian Water Clocks

3. Chinese Water Clocks

2. Greek Water Clocks

1. Egyptian Water Clocks

8 Oldest Mechanical Clocks Discovered