For ten points, identify this city that is Europe's second largest port and the namesake of edible round patties of meat.
This city contains the largest civilian cemetery in the world and its Chilehaus is a World Heritage Site designed by Fritz Hoger. Wandsbek and Altona are two of this city's is seven boroughs, and it is home to the aforementioned Ohlsdorf Cemetary and two artificial lakes, the Inner and Outer Alster. This city is the namesake of one of the Wadden Sea National Parks, and the island of Neuwerk belongs to this city. It is located at the confluence of the Billie and the Elbe. For ten points, identify this city that is Europe's second largest port and the namesake of edible round patties of meat.
This city contains the largest civilian cemetery in the world and its Chilehaus is a World Heritage Site designed by Fritz Hoger.
{Hamburg}