Introduction to the second floor of the main building: The second floor of the main building is where the president and his family live. It mainly includes the Lincoln Bedroom, the Queen's Bedroom, the Treaty Room, the President's Wife's Living Room, the Yellow Oval Room, etc. The Lincoln Bedroom was where Lincoln worked and held cabinet meetings. The famous "Emancipation Proclamation" was signed here. The Queen's Bedroom, decorated with rose and white as the main colors, has received distinguished guests such as Queen Elizabeth of England and the Queen of the Netherlands.