Rumah Sri Aman, also known as Rumah Segi Lapan, is an iconic historic building in Sri Aman. Built during the Brooke era, it was the official residence for the Resident of Simanggang. It was also an administrative centre for several government departments and used as a Government Rest House.

On 21st October 1973, the signing of a Memorandum of Understanding between the Sarawak Government and North Kalimantan Communist Party took place in Rumah Sri Aman. This historic event marks the beginning of the end of the communist insurgency in Sarawak, which finally ended in 1990.

The exhibition at Rumah Sri Aman is divided into four themes; House on the Hill, Era of the White Rajahs, War and Peace, and finally, Rising Tide.