The second most populous town in North Germany, Bremen brings the high-tech, science and space industries together beneath a truly metropolitan backdrop. In a city where innovation, beauty and sophistication meet, it's impossible not to feel the life force. In this 1,200-year-old Hanseatic city, visit the Schlachte Promenade on the River Weser, the full-sized Columbus Space Module of the International Space Station and the Universum Science centre. Oh, and "Hanseatic" refers to an alliance of trading cities in the 13th-17th centuries. But you probably knew that.