Behind the pavilion, there used to be other annexes; however most of them have collapsed into relics from which the original splendor can still be traced. The emperor and his queen were buried in a clay tumulus, 400 metres in diameter, known as the Lone Dragon Hill ("Du Long Fu"). A stone wall with a terrace on top, known as "Ming Lou" (Ming Mansion) or the Soul Tower is half-embedded into the front face of the tumulus. On a stone wall surrounding the vault, 7 Chinese characters were inscribed, identifying the mausoleum of Emperor Ming Taizu (respected title of Emperor Zhu Yuanzhang).