The White House is the official residence of the US president ,Barack Obama . The building is built of stone painted white with Georgian architecture . The chief architect of the project was Irishman J. Hoban . The building was modeled after the National Irish Parliament in Dublin. It is the only royal residence open to visitors free of charge. Oval office is the official office of the president of the United States . Created in 1909 , the office was inspired by the blue room . The camera has three main features and has four doors.
