Opened in 1956, Metropolitan stadium was built in the hopes of attracting a Major League Baseball team and also, possibly, an National Football League (NFL) team to Minnesota. The AAA Minneapolis Millers played there from 1956 through 1959. In 1960, the Washington Senators moved to the Twin Cities to become the Twins. In 1961, the NFL Minnesota Vikings moved into the Met. It closed in 1981 with both teams moving into the Hubert H. Humphrey Metrodome. The former stadium site is now the Mall of America. On the bottom level, visitors can find a memorial home plate honoring the old ballpark.