The 192 monumental calligraphic inscriptions were created by 41 different calligraphers over several centuries.
The central fountain (shadirvan) was originally designed to be open to the sky to allow light into the center of the large prayer hall.
The mosque was built to commemorate the victory of Sultan Bayezid I at the Battle of Nicopolis in 1396.
The minbar (pulpit) is constructed from walnut wood using the 'kundekari' technique, which requires no nails or glue.
The interior's 20 domes are unique for their consistent size and height, creating a uniform horizontal interior space rather than a vertical one.
The mosque interior contains a rare 'Kabe' door cover gifted by the Ottoman Sultan Yavuz Sultan Selim.
Despite its size, the mosque was built in a relatively short period, between 1396 and 1399.
The Bursa Grand Mosque (Ulu Cami) is a masterwork of early Ottoman architecture commissioned by Sultan Bayezid I and completed in 1399. The structure is defined by its massive rectangular plan featuring 20 domes arranged in a four-by-five grid, supported by 12 heavy interior pillars. It is famous for its collection of 192 monumental wall inscriptions, known as calligraphic panels, which represent some of the finest examples of Islamic calligraphy in the world. The interior features a central fountain, known as a shadirvan, located directly beneath the open, glass-covered central dome. The mosque’s interior layout follows the multi-domed architectural style typical of the transition between Seljuk and classical Ottoman mosque designs. It remains an active place of worship serving the local community in the Osmangazi district. The prayer niche (mihrab) is an intricate piece of marble masonry dating back to the late 14th century.
The central shadirvan fountain with the illuminated glass dome directly above it.
Remove your shoes before stepping onto the carpeted area and place them in the provided shelves.
Visit during the middle of the day to see the natural light streaming through the glass oculus of the central dome.
Walk slowly around the interior walls to examine the various styles of Arabic calligraphy.
Do not take photographs of individuals while they are actively praying.
Visitors must dress modestly; women should cover their hair, and both genders should ensure shoulders and knees are covered. Maintain a quiet tone and avoid walking in front of people who are praying.