City Hall in Philadelphia is the largest municipal building in the United States of America! What a beautiful structure this building is. I love walking through the tunnels each day during my walks through the city. I always admire the buildings that were constructed by the Masons. I believe they are way more beautiful than the new style of glass architecture that has become more and more apparent throughout the advent of the industrial revolution. City Hall seems like a fortified castle to me! New pieces of architecture might as well just be built by robots at this point… I guess they basically are