big arch with clock, Rijswijk. Another view: huphtur wrote on 2002/10/09: http://www.stlouisarch.com/ milov wrote on 2002/10/09: http://www.stlouisarch.com/photos/008.jpg Mike+D wrote on 2002/10/10: I live about 20 minutes from St. Louis, but I've yet to go up the arch. My grandfather helped weld the "keystone" block in place about 1965.