This is the community of Wohldorf-Ohlstedt near Hamburg, Germany. This was the first stop on our day of excursions to various green roofs in the Hamburg area for the 3rd International Green Roof Congress. It was also the most impressive (a) because of the beauty of the very natural looking roofs covered in grasses, and (b) because these roofs were constructed in the 1940′s and seem to still be functioning quite well. In fact, the town council has mandated that any renovation projects or new constructions within the original area of the neighborhood must have or maintain a green roof. Mariana Pickering (Emu Architetti)