Tell el-Amarna is an archaeological site in Egypt, known for being the capital city established by Pharaoh Akhenaten during the 14th century BCE. This city was built to honor the sun god Aten and features unique architecture, including temples and palaces that reflect a significant shift in ancient Egyptian art and religion. The site contains numerous ruins, including residential areas and the famous Amarna Letters, which are clay tablets that provide insight into diplomatic correspondence of the time. Today, Tell el-Amarna is a UNESCO World Heritage site, attracting researchers and tourists interested in ancient Egyptian history.