A cat lit by sunlight diffracted through an aquarium in Krasnoyarsk, Russia. | (REUTERS/Ilya Naymushin)

An artist adjusts her work in Sydney, Australia. | (REUTERS/David Gray)

People in a park in Samara, Russia. | (AP Photo/Francisco Seco)

Participants compete in a hot-pepper contest in Chongqing, China. | (Chen Chao/CNS via REUTERS)

A calf jumps over revelers during the running of the bulls in Pamplona, Spain. | (AP Photo/Alvaro Barrientos)

Wild horses gather in Sabucedo, Spain. | (REUTERS/Miguel Vidal)

Tennis players compete at Wimbledon in London. | (AP Photo/Ben Curtis)

A Tour de France team races in Cholet, France. | (EPA-EFE/YOAN VALAT)

Soldiers rest in Tekirdag, Turkey. | (EPA-EFE/STR)

Flowers bloom in Castelluccio di Norcia, Italy. | (REUTERS/Alessandro Bianchi)

A sculpture in Graubuenden, Switzerland. | (EPA-EFE/GIAN EHRENZELLER)

A beach in Sardinia, Italy. | (REUTERS/Stefano Rellandini)

**See last week's best photojournalism**