Introduction to the front room of the underground palace: The front room of the underground palace mainly contains funerary objects. The front room door is a double-leaf pivot type, made of a single boulder, and each door weighs about 1,500 kilograms. The front of the door is carved with nine vertical and horizontal rows of milk-shaped door nails. The door is painted with vermilion lacquer, the door nails are gilded, and it is inlaid with an iron gold-plated title ring, which is bright in color. There is a large vat in the middle of the front room with a diameter of 1.1 meters and a height of 1.5 meters. There are iron core lamp holders and lamp oil in the vat, which is a ten thousand year lamp.