European wall tapestries are woven using a large variety of fabrics such as wool, cotton, and viscose (rayon). Many wall hangings include gold and silver silk threads that give them a wider range in colors, allowing these tapestries to become the finest tapestries in the world. Belgian, French, and Italian made wall tapestries are considered heirlooms due to their high quality. Most are reproductions of famous historical tapestries and artworks from renowned artists.