Today I got a nice cover and postcards from the USA! Three postcards featuring different views of Safeco Field were inside. Safeco Field is located in Seattle, Washington and is the home of the Seattle Mariners, a Major League Baseball team. It features a retractable roof and has a seating capacity of over 47,000 people. It was first opened in 1999 and is named after Safeco Insurance, a Seattle-based company. Thanks Benita!