New York City
Back in the early to mid 20th century, New York had only 3 baseball teams. At the bottom of the photo, located in the south Bronx, you can see the Yankee Stadium, while the Polo Grounds, home of the Giants, sits opposite the Harlem River in upper Manhattan.
The Giants eventually moved to San Francisco in 1958, while the Yankees stayed in the same area in the South Bronx and only moved to a new stadium across the street.