They say there were exactly 11,111 home runs hit at Tiger Stadium in Detroit, from 1912 to 1999. The last hit, in the final game at Tiger Stadium in 1999, was a grand slam home run (bases loaded) in the 8th inning by Robert Fick; a blast that hit the roof at right field.
In 1990, Cecil Fielder hit one over the roof at left field (which is farther away than the roof at right). That was the third ball ever hit over the roof (bouncing) at left field.