I do not have info on the "why" or "what" it is

Picture taken today in Liège (Belgium), around here: http://maps.google.com/maps?f=q&source=s_q&hl=fr&q=Rue+Pont+Saint-Nicolas,+Liège+4020+Liège,+Région+Wallonne,+Belgique&sll=50.64593,5.583946&sspn=0.002133- ,0.005681&ie=UTF8&cd=1&geocode=FdW4BAMduSxVAA&split=0&hq=&hnear=Rue+Pont+Saint-Nicolas,+Liège+4020+Liège,+Région+Wallonne,+Belgique&ll=50.641269,5.582471&spn=- 0.004266,0.011362&t=h&z=17