The Singing Hollow in Sighthill in the north of Glasgow. Created by Wolfram Graubner and erected in 2023, it consists of a large stone with a pair of hollows in it (one on either side). If you stick your head into one of the hollows and hum at the right frequency, it will resonate, causing the stone to sing back to you.

#glasgow #sighthill #singinghollow #publicart