Policemen in riot gear push protesters away from the site of the NATO Summit in Chicago, USA. (Reuters)

Girls wearing traditional dresses, bow at the 40th Coming of Age Day Ceremony and representation of traditional 'Gwan-Rye' in Seoul, South Korea. The ceremony is held to authorize boys and girls at the age of 20, who have been living under the protection of their families, as independent individual. (AP)

A Cambodian family transports sacks loaded with corns to a market in Phnom Penh, Cambodia. (AP)

Policemen gather at the site of a suicide bomb attack at a parade square in Sana'a, Yemen. (Reuters)

The old tower is damaged after an earthquake in Finale Emilia. A strong earthquake rocked a large swathe of northern Italy early on May 20, 2012, killing at least three people and causing serious damage to the area's cultural heritage. (Reuters)

An annular solar eclipse occurs as the moon passes between the Earth and the sun as partially seen at sunrisefrom the coastal township of Gumaca, Quezon province, 187 kilometers (116 miles) southeast of Manila, Philippines. (AP)

A flower-covered Mini Cooper during the Chelsea Flower Show in London. The Chelsea Flower Show is the most prestigious of Britain's flower shows and is held every year in the grounds of the Chelsea Hospital. (AFP)

Iceland entrant Greta Salome, left, and Jonsi perform during rehearsals for the 2012 Eurovision Song Contest at the Baku Crystal Hall in Baku, Azerbaijan. (AP)

Singer Cheryl Cole is helped up the stairs as she arrives for the screening of Love at the 65th international film festival, in Cannes, southern France, May 20, 2012. (AP)