There are a group of important royal tombs which are termed Bintepe (Thousand Hills) along the road from Salihli to Akhisar, 8-10 km north of the Gediz River. These 119 tumuli scattered across the area between the ancient city of Sardis and Marmara Lake belonged to the rulers of Lydia. The dimensions of these tombs vary depending on the social status of their owners. Three of the largest burial mounds-tumulus are said to have belonged to the famous Lydian Kings, Giges, Alyattes, and Ardys. The largest tumulus which was compared by Herodotos to the Egyptian Pyramids is thought to have been the burial place of Alyettes. His tomb is thought the biggest one after Giza Pyramids in Egypt. The Thousand Hills is on the tentative list for listing on the UNESCO World Heritage List. The Thousand Hills has an important place due to the fact that it was changed in its geomorphological structure and appearance by humans.