It is the Sat Gambuj Mosque in Bangladesh

It is the Sat Gambuj Mosque. It is located in Bagerghat district of Khulna divison. IT was made in mughal amol. its style of architecture introduced in Bangladesh in the 17th Century. Its Architectural style: Tughlaq dynasty Architect: Khan Jahan Ali
The Shat Gombuj Mosque has existed for nearly for 6 centuries. It is also referred to as sixty Dome Mosque. It is one of the largest historical mosques in the Bangladesh. . The walls are unusually thick, made from tapered brick. 77 low domes are located inside and one dome on every corner
Though it is called Shat Gambuj Mosjid, actually the numbers of Gamboj in the mosque are 81. The mosque roofed over with 77 squat domes, including 7 chauchala or four-sided pitched Bengali domes in the middle row.