This Week in Photos, Week of June 17-23, 2011

A boy jumps into the waters of the Black Sea in the village of Molochnoye outside the town of Yevpatoria, Ukraine.

US First Lady Michelle Obama and daughters Sasha (center) and Malia take turns reading to children from "The Cat in the Hat" by Dr. Seuss as they visit the Emthonjeni Community Center in Zandspruit Township, Johannesburg.

Rory Mcllroy of Northern Ireland poses with his trophy after his 8-stroke victory on the 18th green during the 111th U.S. Open at Congressional Country Club in Bethesda, MD.

Munzin Chowdhury (center) and others perform yoga in Times Square during an event marking the summer solstice on June 21in New York City.

A couple looks at a pink Soviet WWII tank transported on a boat into Prague's city center. David Cerny painted it pink with friends in April 1991. The Czech Republic is commemorating the 20th anniversary of the departure of Soviet troops which invaded Czechoslovakia in 1968, and the tank was brought back to Prague from a military museum for a week for the occasion.

Two workers look at a plan inside Bucharest's new National Stadium, the Lia Manoliu Arena, which is under construction in preparation for the 2012 Europe League final. The new 55,000 seater stadium will be the biggest in Romania.

A newborn hippo swims around its mother Maruska in their enclosure at the Prague Zoo. The baby hippo was born on June 8, 2011.

Venus Williams returns a shot during her 2nd round match against Kimiko Date-Krumm of Japan on Day 3 of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club in London. Venus would win to advance to the 3rd round.

Italian designer Giorgetto Giugiaro poses in the cockpit of his VAD Ho concept car parked in front of an ATR600 regional turboprop airplane during the 49th Paris Air Show at Le Bourget airport. Giugiaro designed the cabin of new ATR600.

Visitors ride a merry-go-round at the amusement park Wunderland Kalkar (Wonderland Kalkar) in the western city of Kalkar. Wunderland Kalkar was a nuclear fast breeder, which was completed but never taken online, and in 1995 Dutch investor Hennie van der Most bought it and transformed into an amusement park attracting some 600,000 visitors per year.