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Team members check their hot air balloon prior to take off during the 42th International Hot Air Balloon week, in the skiing resort of Chateau-d'Oex, in the Swiss Alps, Sunday, January 26, 2020. 60 balloons from 15 countries will be taking part in the event between the 25th of January and the 2nd of February in the Swiss mountain resort is famous for ideal flight conditions due to an exceptional microclimate. (KEYSTONE/Jean-Christophe Bott)