Hamburg Rathaus
... that the city hall Hamburg Rathaus , constructed from 1886 to 1897, has 647 rooms, six rooms more than Buckingham Palace, and still functions as the seat of the government of Hamburg?
... that the <a class="mw-redirect" href="./City_and_town_halls" id="mwFGI" rel="mw:WikiLink" title="City and town halls">city hall</a> <b id="mwFGM"><a class="mw-redirect" href="./Hamburg_Rathaus" id="mwFGQ" rel="mw:WikiLink" title="Hamburg Rathaus">Hamburg Rathaus</a></b> <i id="mwFGU">(pictured)</i>, constructed from 1886 to 1897, has 647 rooms, six rooms more than <a href="./Buckingham_Palace" id="mwFGY" rel="mw:WikiLink" title="Buckingham Palace">Buckingham Palace</a>, and still functions as the seat of the <a href="./Government_of_Hamburg" id="mwFGc" rel="mw:WikiLink" title="Government of Hamburg">government of Hamburg</a>?