Residents of Sarajevo were met with unusual scenes on the facades of some of the city center's most famous buildings. Without any prior announcement or explanation, large animations of a black ant moving hypnotically across the walls of Sarajevo's buildings appeared in several locations. Passersby stopped in disbelief, recording scenes that look like something from a dystopian thriller. So far, no one has claimed responsibility for these animations. Social media is already flooded with footage, and while various theories about what it actually means are spreading online, there is no official information. Many are wondering what is really being prepared in Sarajevo.