facade of a cave 12 vihara showing double storey, stairs and cell doors with rock-cut, bhaja caves, ancient buddhist built in 2nd

double storey bhaja caves pune maharashtra india ancient old buddhist historic tourism history rock architecture travel famous stone historical archeology religion heritage nature sculpture landmark buddha cave temple culture buddhism asia religious prehistoric civilization indian art carved geology attraction rockcut shrines hinayana carvings building lonavala facade vihara showing stairs cell doors rock-cut built 2nd century phase