Oil is cleaned off swans near Hoek van Holland, The Netherlands. | (EPA-EFE/ALEXANDER SCHIPPERS)

A cow emerges from a cattle cable car in Spiringen, Switzerland. | (EPA-EFE/URS FLUEELER)

A rice field near Ascona, Switzerland. | (EPA-EFE/SAMUEL GOLAY)

A cliff diving event in Bilbao, Spain. | (EPA-EFE/LUIS TEJIDO)

A pole vaulter competes in Lausanne, Switzerland. | (REUTERS/Denis Balibouse)

A kite festival in Sanur, Bali, Indonesia. | (EPA-EFE/MADE NAGI)

A Formula One car races in Spielberg, Austria. | (EPA-EFE/CHRISTIAN BRUNA)

A wildfire burns in Capay, California. | (AP Photo/Noah Berger)

A man carries a burning tire in Johannesburg, South Africa. | (REUTERS/Siphiwe Sibeko)

Workers carry molten aluminum in Caracas, Venezuela. | (REUTERS/Marco Bello)

A policeman destroys cannabis seedlings in the West Bank city of Hebron. | (EPA-EFE/ABED AL HASHLAMOUN)

The International Space Station passes in front of the Moon. | (EPA-EFE/PETER KOMKA)

**See last week's best photojournalism**