Target Field, home of the Minnesota Twins, is a 39,504 seat ballpark located in downtown Minneapolis. The stadium opened for its first regular season MLB game on April 12, 2010. The primary structural frame consists of reinforced concrete moment frames with post-tensioned girders. Infill members were concrete pan joists. The canopies are comprised of cantilevered, tapered steel trusses supported by exterior steel tree columns. ESPN's 2010 survey voted Target Field as the #1 ballpark in US.