Nationals Park (30 images)

United States President George W. Bush delivers the ceremonial first pitch at the new Washington Nationals $600 million ballpark prior to the opening game between the Washington Nationals and the Atlanta Braves on March 30, 2008 in Washington. (UPI Photo/Pat Benic)

Washington Nationals Ryan Zimmerman leaps into the arms of his teammates at home plate after Zimmerman hit a dramatic two-out bottom of the ninth home run to win the game 3-2 against the Atlanta Braves at the home opener of the new $611 million Nationals Park on March 30, 2008 in Washington. (UPI Photo/Pat Benic)

Washington Nationals third baseman Ryan Zimmerman (11) in mobbed by his teammates after hitting the game winning home run in the ninth inning against Atlanta Braves pitcher Peter Moylan on March 30, 2007 at Nationals Park in Washington, D.C. in the inaugural game to start of the regular season. (UPI Photo/Kevin Dietsch)

District of Colombia Mayor Adrian Fenty exits a batting cage as The Washington Nationals hold a tour of the Nationals Park "Strike Zone," an interactive kids area, and a sampling of the Nationals Park menu and concessions, at Nationals Park in Washington on March 27, 2008. Opening day at the new stadium is March 30. (UPI Photo/Roger L. Wollenberg)