The Gazi Husrev-beg Mosque (Begova džamija, "the Bey's Mosque") is the most important Ottoman building in Bosnia and Herzegovina, and one of the finest examples of Ottoman architecture in the Balkans. Built in 1531 by the Ottoman governor Gazi Husrev-beg — the same man who founded Baščaršija — it has been the spiritual centre of Sarajevo's Muslim community for nearly 500 years.
The mosque's interior is spacious and elaborately decorated, with a central dome, calligraphy panels, and intricate tilework. The courtyard contains the Šadirvan (ablution fountain) and the graves of Husrev-beg and his kadi (chief judge). The complex also includes a madrasa (theological school), a library, and several charitable foundations that Husrev-beg endowed in his will. Non-Muslim visitors are welcome outside prayer times; appropriate dress is expected (loose clothing, heads covered for women — scarves available to borrow at the entrance).