In this paper, we present a three-dimensional virtual system which visualizes some
interesting rooms of the University of Debrecen and makes the most cherished and carefully
guarded treasures of the Collection of Rare and Early Printed Books of the University and
National Library of the University of Debrecen virtually available. Our system is based on the
Virtual Collaboration Arena (VirCA) developed by the Cognitive Informatics Research Group
of the Computer and Automation Research Institute of the Hungarian Academy of Sciences.