During PÖFF - Black Nights Film Festival - in Tallinn, the film venues are adorned with kinetic sculptures by Kaarel Kurismaa. The sculptures of drums, bells or radios randomly make some strange sounds. I enjoy how these sculptures come as a surprise, whether you discover them by their look or their sound. The Solaris shopping mall has plenty of them, which is great, as the mall was originally planned as a cultural center.
Viikingraadio
Alma Raudtee 1 / Saturn
Kaksteist kuud (twelve months) - at Kosmos cinema
Öökull (Owl) at Sõprus cinema
Figuurid ja kassid (figures and cats) at CCPlaza
Trummid Sound and Light at CCPlaza
Inglite Mäss (Angels' Mass) in VonKrahl theatre
More about the project here (in Estonian)