Specialists Removed Three Thrilling, Century-Old Murals From the Walls of a French Monastery. Beneath, They Made 'a Discovery for the History of Art'
Hidden under multi-paneled Symbolist murals by French artist Odilon Redon were sketches that he had drawn directly on the walls of the 11th-century Abbaye de Fontfroide
We haven't written up this one. Smithsonian has the full story — the link below goes straight to it.