I don't think it is out of place at all. As a matter of fact I think it's great that they decided to implant a skyscraper there because it te-introduices tall buildings in Paris. We need those in order not to make Paris' open air museum syndrom become even worse ! Along with Tours Duo and Tour Triangle I think we are entering a new era. An era where skyscrapers won't look like huge single monoliths surrounded by small buildings. This new courthouse is an invitation for more skyscrapers in the area and we should salute that !
