Berlin's botanical gardens hosts green market
In pictures: Pillow-fight Day
London's Olympic park opens to public
Queen’s toys go on display
Fort Hood shooting kills three
Lufthansa pilots go on strike
London plant fair is in full bloom
Butterflies brighten UK exhibition
In pictures: Indonesia's Ogoh-Ogoh Festival
World's 100 Most Powerful Arabs - Generation Next
World's 100 Most Powerful Arabs - Thinkers
World's 100 Most Powerful Arabs - Heroes