If you've got a hankering for some intellectual stimulation, make sure you visit Stiftsmuseum. Whether it's history, culture or beliefs, you'll find lots of thought-provoking displays to keep your mind active here.
You'll soon see why this Xanten collection of historical artifacts is a hit with travelers. If you're looking for other things to see here, Xanten Cathedral, Xanten Market Square, and LVR Archaeological Park Xanten are in this area as well. They won't take long to get to from Stiftsmuseum.