Pictures of the Day: Friday, July 27, 2012

Posted July 27, 2012, at 7:37 p.m.

Jae C. Hong | AP

Actors perform in a sequence meant to represent Britain's National Health Service (NHS) during the Opening Ceremony at the 2012 Summer Olympics on Friday, July 27, 2012, in London.

Hani Mohammed | AP

A young Yemeni soldier (center) stands guard as protestors demanding that the relatives of former President Ali Abdullah Saleh be fired from army and police posts demonstrate in Sanaa, Yemen on Friday, July 27, 2012.

Markus Schreiber | AP

New Zealand's Caroline Lenamore runs with her horse Lenamore during horse inspection for the equestrian eventing competition at Greenwich Park, the site for the equestrian and modern pentathlon events at the 2012 Summer Olympics on Friday, July 27, 2012, in London.

Kin Cheung | AP

A young participant wearing an outfit featuring an animation character performs at the annual Comics Festival and Game Fair in Hong Kong on Friday, July 27, 2012. The fair is expected to attract more than 170 local and international exhibitors displaying their latest comics, video games and accessories.

Matt Rourke | AP

A young woman wears a London Olympics logo on her cheek outside the Olympic Park ahead of the 2012 Summer Olympics Opening Ceremony on Friday, July 27, 2012, in London.

Vahid Salemi | AP

Iranian women pray outside Tehran University in Tehran, Iran, on Friday, July 27, 2012, during Muslims holy month of Ramadan. Ramadan is the ninth month of the Muslim year which lasts 30 days during which strict fasting is observed from sunrise to sunset.

Mark J. Terrill | AP

A competitor dives during a practice session at the Aquatics Centre in the Olympic Park ahead of the 2012 Summer Olympics in London on Friday, July 27, 2012.