Introduction to the Four-column Palace: The Four-column Palace is the most photographed landmark building in Palmyra. It is a decorative building built in the middle of a long colonnade. It consists of four small pavilions, each pavilion. It is supported by four stone pillars. It is said that the stone was taken from the quarries of Aswan, Egypt, thousands of kilometers away. There used to be a sculpture under each pavilion, but its whereabouts have long since disappeared.