Art, Music & Design - 3 free documentaries about ancient & medieval art.
Start with How To Make A Medieval Dress: Recreating The Arnolfini Portrait (29 min, Absolute History), then Archeologists Investigate The Mysteries Of The Bayeux Tapestry (59 min, Odyssey). All 3 documentaries here are free to watch from their makers' official uploads. To read deeper, the top-rated book on ancient & medieval art is The Story of Art by E. H. Gombrich.