French highliner Nathan Paulin performs on a 70-metre-high slackline spanning 670 metres between the Eiffel Tower and the Theatre National de Chaillot, as part of the 38th European Heritage Days and the launch of the Cultural Olympiad in Paris, on September 18, 2021. From the first floor of the Eiffel Tower to the Theatre National de Chaillot, the performance is the longest highline crossing in an urban environment. (Photo by Sameer Al-Doumy/AFP Photo)
