Baseball park

A baseball park, baseball stadium, or ball park / ballpark is a place where baseball is played. It refers to the field of play, seating areas (if any) and any other things added to it. 
The flexible rules about baseball fields (aside from the rigid rules of sizes of basepaths and pitcher's mound) allow ballparks to have their own character and quirks. This happens at all levels of baseball, amateur and especiallyprofessional. This makes each stadium interesting and unique. 
Field.
The baseball field is a grassy field that is about or more in diameter, and is separated into the "infield" (the area nearest to the batter) and the "outfield".
The infield is a square (usually called a "diamond"), with each side being long. In each corner of the square, there is a "base", which is a square with sides of . One of the bases is called home base or home plate, and the sides of the square that touch home plate are extended beyond the two nearest bases until the outfield fence (which is or more away from home plate) to form the foul lines. Most of what happens in a baseball game happens in the area of the field in between the foul lines and the outfield fence, which is called fair territory. All other areas of the field (except the foul lines) are called foul territory.
Major League Ballparks.
Below is a list of all current ballparks for teams of major league baseball.