What happened to the city of Valyria?

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Tags

1. #century
2. #known
3. #great
4. #ruined
5. #called
6. #before
7. #aegon
8. #empire
9. #wonderment
10. #event
11. #freehold
12. #valyrian
13. #essos
14. #valyria
15. #destroyed
16. #capital
17. #landing
18. #cataclysmic