Photograph by J. Dwyer of the Gol Gumbaz in Bijapur, Karnataka, from an album of 40 prints taken in the 1860s. The immense domed structure of the Gol Gumbaz or Round Dome, the tomb of Mohammad Adil Shah (ruled 1627-56), is one of the greatest buildings of the Adil Shahi dynasty which ruled parts of southern India from the late 15th to the late 17th centuries, with their capital in Bijapur. The dynasty was founded by the Persian governor of Bijapur, Yusuf Adil Shah, who declared his independence from the declining Bahmani kingdom of the Deccan. Rulers of this dynasty were great patrons of art and architecture, such as Ibrahim Adil Shah (1579-1627). With the Mughals expanding to the Deccan, Bijapur was no longer able to evade confrontation with them and fell to Aurangzeb, after which its importance faded. The Gol Gumbaz is the largest dome in India, surmounting a plain cube with towers in each corner. There is a gallery around the inner base of the dome known as the whispering gallery because of the way that even the slightest sound is carried across the space of the dome. It is accessed from winding staircases in the four towers.