Aerobatic European Champion Zoltan Veres of Hungary flies with his airplane under the Chain Bridge during an air show above river Danube crossing central Budapest, Hungary, on May 1, 2013. (Xinhua/Attila Volgyi)

An airplane flies over the city during an air show above the Danube River crossing central Budapest, Hungary, on May 1, 2013. (Xinhua/Attila Volgyi)

 A tourist takes photos of an airplane flying during an air show above river Danube crossing central Budapest, Hungary, on May 1, 2013. (Xinhua/Attila Volgyi)

Aerobatic European Champion Zoltan Veres of Hungary flies with his airplane under the Chain Bridge during an air show above river Danube crossing central Budapest, Hungary, on May 1, 2013. (Xinhua/Attila Volgyi)

 Aerobatic European Champion Zoltan Veres of Hungary flies past a rooftop with his airplane during an air show above river Danube crossing central Budapest, Hungary, on May 1, 2013. (Xinhua/Attila Volgyi)

Airplanes fly in front of the Hungarian Parliament during an air show above river Danube crossing central Budapest, Hungary, on May 1, 2013. (Xinhua/Attila Volgyi)