 Meanwhile, the period saw another subset of three new retro-modern stadiums that pushed away from classic parks even more.When Great American Ball Park opened in 2003, it featured a contemporary-looking, glass-wrapped facade.Such prominent use of elements that were unfamiliar even to pre-1992 modern stadiums signaled that some stadium planners were more willing to incorporate designs that looked into the 21st century as much as they did the 20th.