The Tomb of Oljaytu is a historical mausoleum located in Sultanahmet, Iran. Built in the early 14th century, it serves as the final resting place for Oljaytu, a Mongol ruler of the Ilkhanate dynasty. The tomb is notable for its unique architectural style, which combines Persian and Mongolian influences. The structure features a large dome and intricate tile work, showcasing the artistic achievements of the period. It is part of a larger complex that includes a mosque and other buildings, reflecting the cultural and religious significance of the site during its time.