Association for Public Art. (2020). What is public art? https://www.associationforpublicart.org/what-is-public-art/. Visited 10 October 2020.
Honour, H., and Fleming, J. (1999). A World History of Art.
Tate. (2020). Landscape - Art Term. https://www.tate.org.uk/art/art-terms/l/landscape. Visited 2 October 2020.
Tate. (2020). Perspective - Art Term.https://www.tate.org.uk/art/art-terms/p/perspective. Visited 29 September 2020.
Tate. (2020). Public Art - Art Term. https://www.tate.org.uk/art/art-terms/p/public-art. Visited 10 October 2020.

Images:

1 Ryan Vojir, 2008. Boston's Beacon Street. Licensed under GNU Free Documentation License
2 Albert Edelfelt, 1889-1890. Kaukolanharju at Sunset. Image courtesy of Finnish National Gallery.
3 Matti Peltokangas, 1990-92. The Connecting Rays (Yhtyvät säteet). At the University of Oulu.
4 Jan and Hubert van Eyck. 1432. The Ghent Altarpiece. Image courtesy of Wikimedia Commons.
5 Street art in Ghent. Photo from 2019.