I had the great pleasure of seeing this in person, back in the 1990's. It's enormous. It's about 230 feet (yes) long. It's in amazing condition, considering it's 970 years old, and a textile. The Bayeux Tapestry is really not a tapestry, but a long, narrative embroidery. It documents the battle of Hastings in 1066, and was commissioned and made shortly after that. If you'd like to read more, there is a nice link here.