345 museums in three countries – from Bern to Mainz, from Stuttgart to Metz and Nancy – can be visited with the Upper Rhine Museum Pass. Among them are many institutions of international renown, as well as numerous small, exquisite museums worth discovering: art museums, technology museums, history museums, poet houses, historical buildings, and parks. Together, they likely form the largest museum in the world. The writer and art collector François Loeb has visited many of them and brings to light the unique charm of each location, sometimes in the form of a short literary text. Thus, the people in the tri-border area are encouraged by the three volumes of "Museums Without Borders" to enjoy the richness and diversity of Upper Rhine culture.