St. Dominic's Church has an imposing façade of cream-coloured stone with white stucco mouldings and green-shuttered windows. Inside, white pillars support a flat ceiling and apron balconies hug the walls. The bell tower, at the back of the building, has been converted into a small museum housing a "Treasure of Sacred Art" exhibiting a collection of some 300 artifacts. The Leal Senado, Portuguese for Loyal Senate, was the seat of Macau's government during its time as a Portuguese colony. The square named after it, Leal Senado Square became part of the UNESCO World Heritage Site Historic Centre of Macau in 2005. Most of the buildings around Largo do Leal Senado are neoclassical in style and some are Classified Monuments or Classified Buildings of Architectural Interest including the Civic and Municipal Affairs Bureau Building, the Post Office Building and the Santa Casa da Misericordia.