The Grand Palace has an area of 218,400 sq. metres and is surrounded by walls built in 1782. The length of the four walls is 1,900 metres. Within these walls are situated government offices and the Chapel Royal of the Emerald Buddha besides the royal residences.

Vimanmek Mansion is the world's largest golden teakwood mansion with its elaborate architectural style reflecting a western influence. The building has two right-angled wings, each wing is 60 meters long and 20 meters high, and is three-storied except for the part where King Rama V resided, which is octagonal and four-storied. Although the ground floor is brick and cement,the upper floors are built of beautiful golden teakwood. Altogether there are 31 exhibition rooms, with the bedrooms, the throne room and bathrooms maintaining the atmosphere of the Thai past. Some display house exhibitions of Thai art including silverware, ceramics,crystal ware, and ivory.