Parliament House contains 4,700 rooms, and many areas are open to the public. The main foyer contains a marble staircase and leads to the Great Hall, which has a large tapestry on display. The House of Representatives chamber is decorated green, while the Senate chamber has a red colour scheme. Between the two chambers is the Members' Hall, which has a water feature and is not open to the public. The Ministerial Wing houses the Prime Minister's Office and other ministerial offices.