When most people think of cities, they picture bustling streets, vibrant markets and endless entertainment. And as Germany's second-largest city, Hamburg features all these urban essentials. But with some 1,400 parks and gardens and over 2,300 bridges (more than Amsterdam and Venice combined) Hamburg mixes rural rejuvenation with metropolitan flair. The One Thing You Don't Want to Miss In terms of shipping volume, Hamburg Harbor is the second-largest port in Europe and the ninth-largest on the planet. While you're sure to catch a glimpse of its 500 berths and 33 docks upon arrival, be sure to get a closer look with an exciting barge tour of the world-renowned harbor.