Boston Common is a fifty-acre park in the cultural center of Boston. It is the oldest city park in the United States, dating back to 1634. The park is a popular destination among sunbathers and exercisers, whose numbers swell in the summer months. The park is the starting point of the Freedom Trail, a 2.5 mile walk leading past sixteen historic landmarks. Located close to Boston Harbor, a bustling restaurant district and multiple colleges, the Common remains the beating heart of the city.