T-Mobile Park - retractable-roof baseball stadium

T-Mobile Park opened in 1999 as Safeco Field and is the home ballpark of Major League Baseball’s Seattle Mariners. The stadium features a retractable roof and a natural grass playing field, allowing games in Seattle’s rainy climate to be played with an open playing surface when weather permits. The facility was renamed T-Mobile Park in 2019 following a corporate naming rights agreement.