April 6, 2013
9
Participants join a mass pillow fight in Trafalgar Square in central London.
10
A participant practices with his bike during Red Bull's Vienna Air King freestyle event held in front of the Rathaus (townhall) in Vienna, Austria.
11
A Belarusian snowboarder takes part in the comic competition 'Californication 6.0' celebrating of the end of winter at an entertainment center Silichi, about 45 km from Minsk, Belarus.