Italien 01.05.2015 Mailänder Expo: Eröffnung von Protesten begleitet Einweihung mit Pauken und Trompeten. Doch in Mailand gab es schwere Ausschreitungen. © Bild: REUTERS/ALESSANDRO GAROFALO Pope Francis delivers an address during the openin © Bild: REUTERS/ALESSANDRO GAROFALO The Chinese pavilion is seen at Expo 2015 in Milan © Bild: REUTERS/ALESSANDRO GAROFALO Volunteers walk past the "Tree of life" at Expo 20 © Bild: REUTERS/ALESSANDRO GAROFALO The Italian pavilion is seen at Expo 2015 in Milan © Bild: APA/EPA/SAMUEL GOLAY/TI-PRESS ITALY MILANO EXPO 2015 © Bild: REUTERS/ALESSANDRO GAROFALO People queue to enter at Expo 2015 in Milan © Bild: APA/EPA/DANIEL DAL ZENNARO ITALY EXPO MILAN 2015 © Bild: REUTERS/ALESSANDRO GAROFALO A man takes pictures at the Thai pavillion at Expo © Bild: APA/EPA/SAMUEL GOLAY/TI-PRESS ITALY MILANO EXPO 2015 © Bild: REUTERS/STEFANO RELLANDINI Protesters hold a banner reading "No Expo" during © Bild: APA/EPA/DANIEL DAL ZENNARO ITALY PROTEST EXPO 2015 © Bild: REUTERS/STEFANO RELLANDINI Cars are set on fire by protesters during a rally