PhraRacha Wang Derm (Wang Derm Palace) or Thon Buri Palace is the royal palace of King Taksin the Great. It is now located in the Royal Thai Navy, on ArunAmarin Road, on the west bank of the Chao Phraya River, at the mouth of Bangkok Yai Canal. This area was the location of Wichayen Fort,
Wang Derm Palace or Thon Buri Palace was built in the reign of King Taksin the great in 1767, .
Inside Wang Derm Palace is the Throne Hall, the most important place of the palace, which was divided into two segments. The first part is “Tong PraRong,” the throne room, or “Winitchai” which is a Thai-style pavilion with a cement platform. The roof of the throne room segment is decorated with Cho Fah (gable apex), Bai Raga (sloping edges of the gable) and Hang Hong (two-side bottom corners of the gable) Nowadays, the Royal Thai Navy still uses this place to hold important events and ceremonies as well.