January 22, 2013

Cossack cadets toss their rifles as they practice for an upcoming performance to mark the 130th anniversary of the founding of the Novocherkassk Cossack cadet corps, outside a cathedral in the southern Russian city of Novocherkassk.

1 Cossack cadets toss their rifles as they practice for an upcoming performance to mark the 130th anniversary of the founding of the Novocherkassk Cossack cadet corps, outside a cathedral in the southern Russian city of Novocherkassk.

2 A woman walks near a tram at the Alfama neighborhood in Lisbon, Portugal.

U.S. President Barack Obama and first lady Michelle Obama dance during the Commander-In-Chief Inaugural ball at the Washington Convention Center during the 57th Presidential Inauguration in Washington, D.C., January 21, 2013.

3 U.S. President Barack Obama and first lady Michelle Obama dance during the Commander-In-Chief Inaugural ball at the Washington Convention Center during the 57th Presidential Inauguration in Washington, D.C., January 21, 2013.

A woman climbs during the opening of a rope park at the Shimbulak Ski Resort in the Tien Shan mountains outside Almaty, Kazakhstan. The newly opened park is world's highest rope park mounted on artificial supports, said its designers.

4 A woman climbs during the opening of a rope park at the Shimbulak Ski Resort in the Tien Shan mountains outside Almaty, Kazakhstan. The newly opened park is world's highest rope park mounted on artificial supports, said its designers.