This is the 2nd card K. R. Bhat sent me.
Gol Gumbaz, the mausoleum of Muhammad Adil Shah (AD 1626 –56) located in Bijapur, District Bijapur, Karnataka State is an important monument of Indo-Islamic architecture aptly known for its amazing dimensions and unique acoustic features.
The construction of this building was completed and the deceased king was interred in this building in 1034 AH (AD 1656) and contains the sepulcher containing the tombs of Muhammad Adil Shah (AD 1626-1656), the seventh Sultan of the Adil Shahi dynasty, his wives and daughters. Soon after his accession to the throne in AD 1626, the Sultan started constructing this edifice for burying his mortal remains. He was buried in the vast vault beneath the floor along with other family members. The exact position of the real tomb is indicated by the wooden canopy kept on the high platform at the middle of the floor of the hall.
This edifice ranks among the most imposing ones in India for the sheer monumentality of its massive dome and its floor area. - in: http://asi.nic.in/asi_monu_tktd_karnataka_golgumbaz.asp