Counties are further subdivided into municipalities that are either incorporated as cities, boroughs, or townships. The borough boards decide on matters particular to their respective boroughs. Each of the five boroughs has a borough board. Wayne County has only boroughs and townships. The city is composed of 19 large boroughs, subdivided into neighbourhoods. The map shows the counties and the county boroughs. Downtown Flushing has become one of the busiest central core neighborhoods in the outer boroughs. This is particularly true in parts of the metropolitan boroughs of Sandwell, Walsall and Wolverhampton. The second-tier units would form by amalgamating the various existing boroughs and districts. Queens has the most diversified economy of the five boroughs of New York City. It serves residents of both the London boroughs of Hounslow and Richmond. Berlin is subdivided into 12 boroughs or districts ("Bezirke"). Brooklyn has 16 City Council members, the largest number of any of the five boroughs. Thousands of people perished in these densely populated working class boroughs. The boundaries of existing county boroughs were also widened.