Built nearly 80 years ago, the Mini-Met is a throwback ballpark that is home to the amateur, high school and Legion baseball teams in Jordan, about 35 miles southwest of Minneapolis. The manual scoreboard and creek surrounding the Mini-Met add to the charm. The upkeep is performed almost entirely by volunteers who take pride in preserving their gem of a stadium, said John Breunig, who works for the city of Jordan. "When the lights are on at night, it's just a little retreat from the rest of the world," Breunig said.

Runner-up: Clemens Stadium, St. John's University, Collegeville