May 11, 2014
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A professional clown, whose son has gone missing, holds a flower at a monument honoring mothers, where many gathered after participating in the National March for Dignity on the day Mexicans celebrate Mother's Day in Mexico City, May 10, 2014.
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A participant operates the "Flying Dim Sum", a self-made flying machine, during the Red Bull Flugtag (Flight Day) event at Hong Kong's financial Central district.
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People walk near an installation made of 400 gas masks in the shape of the radioactive material hazard symbol in Sofia, Bulgaria, May 10, 2014. The installation marks the 28th anniversary of the Chernobyl nuclear disaster and was made by an anonymous group of artists, known as Destructive Creation, local media reported.
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Manchester City's captain Vincent Kompany (C) celebrates with the English Premier League trophy following their soccer match against West Ham United at the Etihad Stadium in Manchester, northern England.