Hamburg is best enjoyed with a fischbrötchen, a simple sandwich with the fish inside, the most popular being pickled herring one. It is symbolic of Hamburg, a free-spirited major German port city of Hanseatic glory that is the third-largest port in Europe and the second-largest city in the country. The simplicity and the irresistible taste of the fischbrötchen make it easier to understand this vibrant megapolis that even with its imposing size was able to retain the welcoming and friendly hassle-free atmosphere. There are many must-sees here in terms of sights. First of all, go to the UNESCO-protected Speicherstadt or warehouse district, gaze at the contemporary architecture genius of the Elbphilharmonie and stroll through the Reeperbahn where The Beatles used to play at the beginning of their world-conquering career.