Fenway Park is one of the oldest ballparks in the Major Leagues, having opened in 1912. Being so old, it is considered a historic landmark and one of the most famous places in baseball. It's location and the manner in which it has been reconstructed and remodeled over the years give it several unusual features. Since the ballpark was built in the middle of the city instead of in an area designated specifically for sporting facilities, it was designed to fit into the land it was given. This helped to create famous 37-foot "Green Monster," built in left field to compensate for the relatively short distance from the wall to home plate.
Other unusual features include the triangle shape in center field created by the bullpens which were placed in right field. Both of the foul poles have officially been named after former players, the left field pold being dubbed the "Fisk Pole" after former catcher Carlton Fisk who famously hit a game-winning home run off of it during the 1975 World Series, and "Pesky's Pole" in right field, the shortest right-field porch in the Majors which former infielder Johnny Pesky hit some of his few home runs around. There is a single red seat located in right field, placed where former slugger Ted Williams supposedly hit the longest home run ever hit in the ballpark. The team's retired numbers are hung from a wall above right field.