Bringing this back for now, just trying to change up the posting here. I thought this topic would be neat, because there are 2 REALLY old stadiums, 4 stadiums from the 60s and 70s, then the rest are fairly new.
US Cellular Field
St. Petersburg, FL
Sun Life Stadium
Miami Gardens, FL
Kansas City, MO
*Note, they upgraded the stadium after the 2008 season
Los Angeles, CA
So there it is. The Marlins are getting a new ballpark for the 2012 season, while the Rays are looking for a place to put one. Boston got the 1999 MLB All-Star game, because they thought that Fenway would be replaced any day now, but it has survived 10 more years.