Arg-e Bam is a historical citadel located in the city of Bam, in southeastern Iran. It is one of the largest adobe structures in the world, built around 500 BC. The citadel served as a military fortress and a center for trade along the ancient Silk Road. Its impressive architecture features numerous towers, walls, and living quarters, showcasing the ingenuity of ancient builders. In 2003, Arg-e Bam was severely damaged by a devastating earthquake, leading to significant restoration efforts. Today, it is recognized as a UNESCO World Heritage Site, attracting visitors who come to admire its historical significance and architectural beauty.