@kashi Thanks Kashi, an intriguing photo. Went look for info, it seemed to be in Turkey as per the sign on the left side of photo. Found this :
"Installation for the 8th International Istanbul Biennial, 2003.
1600 chairs stacked in the space between two buildings."
Looking for more info now.
@kashi Doris Salcedo is the artist who created this.
https://www.whitecube.com/news/news_and_events/doris_salcedo_awarded_the_2017_rolf_schock_prize_for_visual_arts_stockholm
More photos of this instalation, giving a sense of how it feels in the streetscape : https://earthlymission.com/cool-street-art-made-of-chairs-a-lot-of-chairs/
Quite a lot of chairs, and a lot of work putting it together.