Boston Public Garden is a large park situated in the center of Boston in the state of Massachusetts. It is one of the oldest parks in the world. It was established in 1837 by a philanthropist Horace Grey as the first public botanical garden in the United States. There are many rare domestic and imported varieties of trees. Lagoon Bridge that spans two shores of the pond is the central point of the park. The bridge delights with harmonious “rhythmical” form, which refers to the architecture of the old town.