digital and virtual technology, in a project known as Ny Trelleborg. The municipality has also initiated a large nature restoration project of the entire river valley of Tude Å, including the trelleborg. In collaboration with the other Viking ring castles, the site has applied for admission to UNESCO as a World Heritage Site. In popular culture In the book Eaters of the Dead by Michael Crichton, Trelleborg (mentioned as Trelburg) was a stop on Ibn Fadlan's journey. In the footnotes, Crichton confirmed that this was indeed Trelleborg near Slagelse. In the book “Jomsviking” by Norwegian author Bjørn Andreas Bull-Hansen, Trelleborg figures as the base of Danish King Svein Forkbeard at the time of the battle of Svolder. Bibliography Steen Wulff Andersen: Vikingeborgen Trelleborg. Museet ved Trelleborg, 1995 Steen Wulff Andersen: Trelleborg. In: Reallexikon der Germanischen Altertumskunde Bd. 31. Berlin 2006. S. 157–160. Bent Jørgensen: Et gensyn med navnet Trælleborg. In: Gillian Fellows-Jensen, Niels Lund: Beretning fra fjortene tværfaglige vikingesymposium 1995. Eva Nyman: Trælleborg. In: Reallexikon der Germanischen Altertumskunde Bd. 31. Berlin 2006. S. 118–119. References External links Trelleborg Nationalmuseet Trelleborg Pamphlet from the Trelleborg Museum Source Viking ring fortresses Buildings and structures in Slagelse Municipality Archaeological sites in Denmark Forts in Denmark Harald Bluetooth Museums in Denmark National Museum of Denmark Viking Age museums