The treasure hidden by Darius III and everyone is looking for it. The treasure was the result of the conquests of Darius III from 330 to 380 BC. Part of the treasure that was in the cities of Susa, Damascus and Persepolis was looted by Alexander the Great. But the great treasure was never found. It is said that the treasures that Alexander the Great took to his countries contained 3,000 camels and 10,000 mules, but the main treasure is said to be hidden around the city of Hegmataneh (Hamedan), the summer residence of Darius, which the kings of the time searched for a long time and did not find. According to experts, it is the largest treasure in the world that has not yet been found.