Water drips from a swimmer's foot in Buenos Aires. | (Lukas Schulze for OIS/IOC/Handout via REUTERS)

A lifeguard passes a giant marionette in New Brighton, Britain. | (REUTERS/Darren Staples)

An inflatable sculpture extends from a warehouse in Philadelphia. | (AP Photo/Matt Rourke)

Mariah Carey performs in Los Angeles. | (REUTERS/Mario Anzuoni)

People building a human tower in Tarragona, Spain. | (AP Photo/Emilio Morenatti)

Children on a swing in Kathmandu, Nepal. | (EPA-EFE/NARENDRA SHRESTHA)

Children play in Baikonur, Kazakhstan. | (EPA-EFE/YURI KOCHETKOV)

A flock of starlings flies in Rome. | (REUTERS/Tony Gentile)

A helicopter flies above the Baikonur Cosmodrome in Kazakhstan. | (REUTERS/Shamil Zhumatov)

People watch the sunrise at Haleakala National Park in Hawaii. | (REUTERS/Navesh Chitrakar)

A mural of Che Guevara in Naples. | (EPA-EFE/CESARE ABBATE)

A SpaceX rocket flies over Oceanside, California. | (REUTERS/Mike Blake)

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