This Selçuk-influenced tomb, representing one of the noblest of its era, has become the symbol of Bursa. If you're looking for a blue building, look no further, as the tiles of this hexagonal structure are actually turquoise, topped by a lead dome resting on a plaster rim. The construction of the tomb was ordered by the tenant himself, Sultan Mehmet I, and was completed around 1421. The color glazing of the interior tile work is an outstanding example of the art, from the window pediments adorned with verses of the Koran and hadiths (narrations of the life of Mohammad) in Arabic script, to the tile inscriptions on the sarcophagi. It's also worth noting the workmanship of the colors of the panels on the mihrab, which change color according to your perspective.