For just about 150 years, Bangkok’s Grand Palace was not only the home of the King and his court, but also the entire administrative seat of government. Within the crenelated walls were the country’s war ministry, state departments, and even the mint. Thai Kings stopped living in the palace full time around the turn of the twentieth century, but the complex remains the seat of power and spiritual heart of the Thai kingdom.
The palace complex, like the rest of Ratanakosin Island, is laid out following the general outline of Ayutthaya palaces. The Outer Court, near where you enter the complex today, housed the government departments in which the king was directly involved, such as civil administration, including the army, and the treasury. The Temple of the Emerald Buddha takes up one corner of the complex next to the outer court.(Erawan National Park)
In the middle of The Grand Palace is the Central Court, where the residence of the king and the halls for conducting state business were located. You are allowed to look at the fronts of the buildings in the central court, but only two of the throne halls are open to the public, and only on weekdays. (Another activities)