This is the most famous monument in Bijapur. It is the tomb of Mohammed Adil Shah (ruled 1627-1657). It is the largest dome ever built, A particular attraction in this monument is the central chamber, where every sound is echoed seven times. Another attraction at the Gol Gumbaz is the Whispering Gallery, where even minute sounds can be heard clearly 37 metres away. Gol Gumbaz complex includes a mosque, a Naqqar Khana (a hall for the trumpeters) (Now it is used as museum) and the ruins of guest houses.