trade fair centre

A man cycles a bike over painted lines a...A man cycles a bike over painted lines at the trade fair centre where the Ideen Expo 2013 will take place in Hanover on August 22, 2013.  The fair, opening on August 24, 2013, is organised for children, youth and young adults to arouse their spirit of resarch and to promote careers in the business of technique and natural sciences. AFP PHOTO / DPA / JULIAN STRATENSCHULTE   GERMANY OUTJULIAN STRATENSCHULTE/AFP/Getty Images

Julian Stratenschulte/Getty

A man cycles over painted lines at the trade fair centre in Hanover, Germany where the Ideen Expo 2013 will take place. The fair, opening on Saturday, is aimed at children, youth and young adults to promote careers in the business of technique and natural sciences.