Sydney Town Hall symbolically reflects the city's origins as Australia's oldest settlement. While the building was constructed in two stages between 1866-1875 and 1883-1888, the latter, with its Second Empire architecture and ornate clock tower, is more elaborate. The building was crafted out of local Sydney sandstone and features several sections of note, including the Centennial Hall, the Vestibule, and the Council Chambers. The Centennial Hall houses the Sydney Town Hall Grand Organ, which is heralded as the largest pipe organ with tubular pneumatic action in the world. Visitors can explore the building on guided tours that depart from the Town Hall steps. Highlights include the Vestibule, the Centennial Hall, the North and South Staircases, the Council Chambers and the Lady Mayoress' Room, together with the Town Hall's extensive collection of paintings and silverware.