Richmond is well endowed with green and open spaces accessible to the public. To the east and south lies Richmond Park, a large area of wild heath and woodland originally enclosed by Charles I for hunting, and now forming London's largest royal park. It is about three times the size of Central Park in New York and it contains on a permanent basis around 650 red and fallow deer. There are several substantial buildings within the park; notably Pembroke Lodge and White Lodge. To the north lies Old Deer Park, a 360-acre Crown Estate landscape extending from the town along the riverside as far as the boundary with the Royal Botanic Gardens at Kew. This contains wide green lawns, municipal sports pitches and playing fields, rugby and athletic grounds, swimming pools, two Royal Mid-Surrey golf courses, and the Grade I listed former King's Observatory erected for George III in 1769.