Complex sentence: The adjoining areas of Green Park is Hauz Khas, of great historical significance with numerous monuments dating back to the medieval period, and the Deer Park, which is a large public space with greenery and also the DLTA Tennis courts.
Split into simpler sentences: The adjoining areas of Green Park is Hauz Khaz, of great historical significance with numerous monuments dating back to the medieval period. Also near by is the Deer Park, which a large public space with greenery and also DLTA Tennis courts.