Significance of Dumbledore's Office

The entrance to his office was blocked by a single Gargoyle, beyond which was a moving stone spiral staircase. The door to his office had a brass knocker. On the walls were portraits of former Hogwart's headmasters and headmistresses (who advised Dumbledore, whether he wanted them to or not). His office was circular and, on his perch behind the door, stood Dumbledore's Phoenix, Fawkes. The room was filled with delicate silver instruments. Inside one of its cabinets was a shallow bowl with strange markings around its rim: the Pensieve (which Dumbledore used to examine different memories shedding light on Voldemort's youth).