French archaeologists have discovered an 11,000-year-old work of art in northern Syria which is the oldest known wall painting, even though it looks like a work by a modernist. Rectangles dominate the ancient painting, which formed part of an adobe circular wall of a large mud brick house with a wooden roof. The dating makes the designs at least 1500 years older than wall paintings at Çatalhöyük, the famous 9500-year-old Turkish village, among one of the first towns.
helpful yet to know more @ old brick building and their composition