The Green Monster at Boston's Fenway Park may be legendary, but one Minnesota ballpark's outfield wall stands just as tall. Zoom in: The left field wall at Eagan High School is about 37 feet high.

The Green Monster is a towering beast of a wall in Fenway Park that is known as one of baseball’s most iconic landmarks. It stands at over 37 feet tall, 231 feet wide, and is made of reinforced ...