A penitent flagellates himself during a Holy Week procession on April 21, 2011 in San Vicente de la Sonsierra, Spain. The penitents called Los Picaos flagellate themselves during the Holy Week processions. (Photo by Denis Doyle/Getty Images)

The Prague astronomical clock, or Prague orloj, is a medieval astronomical clock located in Prague, the capital of the Czech Republic. The clock was first installed in 1410, making it the third-oldest astronomical clock in the world and the oldest one still working.

Yoga Dogs is the first fully illustrated guide to yoga created by dogs for dogs (with the assistance of a few humans purely for technical purposes). Any canine can and should practice yoga. From show dogs and working dogs to mixed breeds and even basic squirrel chasers, we all can enjoy its benefits.

Belen Rodriguez and Elisabetta Canalis attends the 61th Sanremo Song Festival at the Ariston Theatre on February 15, 2011 in San Remo, Italy.

146 West End Stars hold a flashmob in support of the non-profit organistation Love 146, which campaigns to end child s*x slavery and exploitation, at Trafalgar Sqaure on April 11, 2011 in London, England. (Photo by Tim Whitby/Getty Images)

Moscow riot policemen detain an activist during an unauthorized protest anti-Putin opposition rally to defend Article, 31 of the Russian Constitution which guarantees the right of assembly, in Triumfalnaya Square in Central Moscow, Russia, on December, 31, 2011 (Photo by Konstantin Zavrazhin/Getty Images)

Photo by: Sergey A.; Source: LiveJournal