Artists in the eastern German city of Chemnitz have covered the 10 meter high monument to Karl Marx with cloth and visitors can look through an opening into Marx's eyes. Under East Germany's communist regime, Chemnitz was renamed Karl Marx Stadt and billed as a model of Socialist urban planning. On the other side of the country, in the western city of Trier, Karl Marx's birthplace attracts some 40,000 visitors a year - a third of them from China. And the publisher of Marx's "Das Kapital" have also registered a growing interest in his work. Last year the number of copies printed tripled from 500 to 1500.