It's not only the story about the largest cathedral of the Netherlands that stood here until a tornado blew away the nave in 1674, but by the same token remnants of the Roman forts, of the settlement of Willibrord and of various previous churches that used to be at Domplein. By descending underground with a torch, visitors assume the role of the archaeologist. In this way they uncover in their investigation the unbelievable history of the square. When they light up a foundation or archaeological find it triggers, for example, an explanation from the urban archaeologist who narrates via an earphone what the visitor sees. Besides this archaeological expedition which mainly arouses curiosity, there's also the multimedia descent in time. Aided by the detailed 3D reconstructions of Domplein, visitors are progressively taken further back in time. They virtually find themselves, amongst other things, in the Gothic church and take a look around in the Roman Fort (Castellum)