Yıldırım Bayazıt Kulliye (Center): The complex constructed in between 1390 and 1399 in Yıldırım district at the east of the city is composed of a mosque, theology school, darüşşifa (cure house), tomb, inn, hamam, charitable establishment, pleasure - house, kitchen, service rooms and stable structures. The mosque at the middle of the kulliye is one of the most monumental example of the sided mosques, and it has a cure house dated 1399. Ottoman architecture had started to find a unique building structure style with this mosque.

The tomb, which is single structured with its inscription is on the north east of the mosque. The tomb which was constructed to Mimar Ali bin Hüseyin by Yıldırım Bayezit’s son Süleyman Han in 1406, is the first sample of Ottoman tombs with portico.