Text in English & German. The topic of this book is memory. What do we remember? We like to recall joyful events and wish we could relive them again and again. On the other hand wars, genocides, flight, destruction and epidemics are events remembered with horror, and sometimes their memory is even repressed. Eventually times change, and we begin to forget everything that happened. Our vision of the world is in danger of vanishing. Monuments counteract forgetting. Up to the beginning of the 20th century these were marble busts, figures of horsemen, bronze sculptures, columns, gateways and tombs that were erected in public urban spaces and in parks. This was a way to honour heroes and their military, political and cultural feats and to keep their memory alive. Their goal was to educate and admonish people. Their function was thus to provide models, but also to make viewers feel submissive. Today, in our democratic, pluralistic society, when modern means of communication accelerate all developments, the definition of the monument as a solemn, massive sign of remembrance that brings to mind historic moments has become obsolete. Daily the mass media inundate us with a plethora of images of the past and the present. Thus millions of people can participate in past and present events. There is an almost infinite number of collective experiences and just as many signs of remembrance. This being so, is there anything that can still be called a monument? It is this and similar questions regarding monuments that preoccupy the author in this book; he presents his profound insights into all aspects of the history of architecture and art, of philosophy and the new media. The book is a godsend for readers who are looking for ideas and information that go beyond the mainstream.