- Areas within the urban environment with their surfaces open to the sky, that have been consciously acquired or publicly regulated to serve urban shaping function, in addition others may provide recreational opportunities.
- English Heritage
- http://creativecommons.org/licenses/by/3.0 (FISH Thesaurus of Monument Types)
- http://www.english-heritage.org.uk (FISH Thesaurus of Monument Types)
Download this concept: