What is the highest successful tightrope walk ever?

Related questions

1. What does a slackline do?
2. When did slacklining start?
3. How do I make a slackline anchor?
4. How wide should a slackline be?
5. How tight should a slackline be?
6. How does a slackline work?
7. What is walking on a rope called?
8. Why does a long pole help a tightrope?
9. Why do we hold our arms out to balance better?
10. How big is a tree slackline?

Tags

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2. #record
3. #years
4. #during
5. #benchmark
6. #title
7. #previous
8. #incredible
9. #trade
10. #petit
11. #center
12. #france
13. #towers
14. #freddy
15. #smashing
16. #philippe
17. #tightrope
18. #stood
19. #world
20. #august