A park is an area of open space provided for recreational use. It can be in its natural or semi-natural state, or planted, and is set aside for human enjoyment or for the protection of wildlife or natural habitats. It may consist of rocks, soil, water, flora and fauna and grass areas, but may also contain buildings and other artifacts such as play grounds. Many natural parks are protected by law.
The first parks were deer parks, land set aside for hunting by royalty and the aristocracy in medieval times. They had walls or thick hedges around them to keep game in and people out.