Q. Gol Gumbaz at Bijapur was the mausoleum of which ruler?
Answer: Mohammed Adil Shah
Notes: Gol Gumbaz is the mausoleum of Mohammed Adil Shah, Sultan of Bijapur. The tomb is located in Bijapur, Karnataka was  completed in 1656 AD by the architect Yaqut of Dabul. It is famous for the so-called "Whispering Gallery".

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