Five years after the publication of the Hamburg Guide, the first of the On the Road series, it was decided to print a new updated version to include 11 recently constructed projects of considerable interest which have been integrated into the five itineraries proposed in the guide. When discussing contemporary architecture, constant updating is a fundamental aspect, especially in those cities intent on maintaining their objectives of high urban planning standards. For this reason, even after only a few years, the first edition ran the risk of being out of date. Today Hamburg forms an open-air museum for contemporary architecture lovers and an authentic observatory on the realizations and benefits possible with creative sustainable urban planning. The selection of the projects provides a full-immersion in architecture, allowing the reader to dwell on the functional, typological and compositive aspects of the buildings, which are rendered even more legible by images and technical drawings that supplement the descriptions. The volume also contains useful information and advice which will make it easier and quicker to get around the city, making it possible to capture the essence of the place even in a short visit. This is more than simply an architecture guide: it is also and above all an invitation to travel.