Wrigley Field (Allsport)   Opened: April 20, 1916 Capacity: 38,902 Fun Facts: The tradition of signing "The Star-Spangled Banner" at the beginning of each game started here during the first game of the 1918 World Series After each win, a blue "W" flag flies from the left-field pole The breezes off Lake Michigan favors pitchers, but if the wind is going in the other direction, it favors the hitters