City Hall Park and its fountain, the marble front under the cupola, then the rotunda: twin marble stairs sweeping up to a ring of ten Corinthian columns under a coffered dome, the Governor's Room through its door, the portraits of the city between the columns.

New York City Hall was completed in 1812 to designs by Joseph Francois Mangin and John McComb Jr. It is one of the oldest continuously used city halls in the nation and still houses its original government functions. The Landmarks Preservation Commission designated the building an individual landmark in 1966 and its central rotunda an interior landmark in 1976. Free tours pass through the rotunda and the Governor's Room.
Source · NYC Public Design Commission ↗
The 1812 Federal front in white marble with its arcade, colonnade and cupola, the circular rotunda with a coffered dome on ten columns, the self supporting curved twin stairs, the second floor gallery, the Governor's Room and its portrait collection, the park and its fountain. Mood: civic daylight. Everything is procedural geometry with painted surfaces; nothing is a scan or a photograph. The room is an interpretation, and it hangs the New Yorkers the census recorded at this place first.