Phayathai, is a former palace complex in Bangkok. It consists of several buildings and halls, including the Phiman Chakri Hall, the edifice with the tower, here seen on the left.

To the right of the main complex, there is a freestanding structure, which is known as the Thewarat Sapharom Hall.

Today, the complex belongs to the Ministry of Defence and is part of the military Phra Mongkutklao Hospital.