San Francisco City Hall, the buildings are impressive. The exquisite stone carvings on the walls of the City Hall make people feel as if they have entered the Royal court. I admire the American government's open attitude towards the public and can visit the office freely during working hours. I also came to the door of the mayor's office on the second floor to have a look, and went to the office of fiscal and tax administration to take pictures. There are many pigeons on the town hall square.