Estonian slacklining champion, Jaan Roose, attempts a walk across a 500-meter line suspended about 180 meters above central Warsaw, Poland. The line connects the Palace of Culture and Science with the Varso Tower, the tallest skyscraper in the European Union. In addition to the athletic spectacle, the stunt is being presented by the promoter, Red Bull, as a symbolic link between “old” and “new” Warsaw.