The museum is situated next to the Balai Besar in the heart of Alor Setar. Since 1956, the Royal Museum building once served as the royal palace. It contains the regalia of the Kedah royal family. Here, you can find displays and memorabilia related to the life and times of Malaysia's first prime minister, Tunku Abdul Rahman Putra Al-Haj, who was also a prince of the Kedah royal family. Several hunting trophies can also be found in the Astaka Hall.