New York City
Yes, back in the early to mid 20th century, New York had 3 baseball teams. The two stadiums showed here are Yankee Stadium, at the bottom of the picture located in the south Bronx, while the Polo Grounds, home of the Giants, sits opposite the Harlem River in upper Manhattan.
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The Giants eventually moved to San Francisco in 1958, while the Yankees have stayed in the same area in the South Bronx, but have moved across the street to a new stadium.