The word “boulevard,” which originally indicated a bulwark or rampart, and was afterwards applied to a public walk or road on the site of a demolished fortification, is now employed in the same sense as public drive. A park is a piece of ground adapted and set apart for purposes of ornament, exercise, and amusement. It is not a’ street or road, though carriages may pass through it. So a boulevard or public drive is adapted and set apart for purposes of ornament, exercise, and amusement. It is not technically a street, avenue, or highway, though a carriage way over It is a chief feature. People v. Green, 52 How. Prac. (N. Y.) 445; Howe v. Lowell, 171 Mass. 575, 51 N. E. 536: Park Com’rs v. Farber, 171 111. 146, 49 N. E. 427.