At Yogyakarta city has many heritage buildings and monuments. The number one must-see attraction is Sri Sultan Hamengkubuwono's palace, better known as Kraton Ngayogyakarta. Other heritage buildings from Dutch colonial architecture era like a: BNI '46 building, Kantor Pos Besar (Central Post Office) building, Stasiun Tugu and Bank Indonesia building, all of them are located near Sultan's palace.