The mandarins' stone pillar at the Esplanade of Great Salutation

The yard in front of the hall is the Esplanade of Great Salutation, which is cladded with Thanh Hoa stones and divided into two levels. The upper part was mandarins ranked 3rd and above, while the lower was for the rest. The two sides of the yard have two rows of stone pillars, specifying the position for the mandarins in the order called the Pham Son.