An Expo 2015 logo is seen on the top of the new headquarters of the Lombardia Region in Milan, northern Italy March 2, 2015. The Milan Expo will open in the city on May 1, following the 2010 Shanghai ... more 
An Expo 2015 logo is seen on the top of the new headquarters of the Lombardia Region in Milan, northern Italy March 2, 2015. The Milan Expo will open in the city on May 1, following the 2010 Shanghai Expo. Officials are counting on some 20 million visitors to the six month-long exhibition of products and technologies from around the world. Picture taken March 2, 2015. REUTERS/Stefano Rellandini less 
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Reuters | Photo By STEFANO RELLANDINI / REUTERS
Sun, Apr 26, 2015 2:13 PM EDT