The latest tombs Egyptians made were sarcophagi. Many of the ancient royal tombs were destroyed. Sphinx depictions are generally associated with architectural structures such as royal tombs or religious temples. Retainer sacrifice was practised within the royal tombs of ancient Mesopotamia. Most of the tombs have been excavated. It was used in construction of Temples, Tombs and Palaces. There is evidence from seeds in Pharaoh tombs of watermelon cultivation in Ancient Egypt. Her figure appears on paintings in temples, tombs, and private chapels. There is a huge variety of megalithic tombs. Mecklenburg is the site of many prehistoric dolmen tombs. Other kings constructed their own tombs elsewhere. The subterranean "Hathor temple tombs" total 12 chambers. There are 30 archaeologists to protect the 895 imperial tombs. There are other examples of Jin dynasty painting from tombs. It accounts for around 90% of the region's megalithic tombs.