interior decorate this lecture hall with medieval style. . . with speaker system and lecture notes and chalkboard and projection screen and tiered seating and laptop and microphone and projector. . with velvet, chenille, damask, and brocade draperies and fabrics and heavy furniture pieces and timber beams and carved wooden tables and medieval shields on the wall and intricate wooden inlay designs and carvings and deep colors like red, gold, or blue and castle interior. . .