The Marabar Caves are fictional caves which appear in E. M. Forster's 1924 novel A Passage to India and the film of the same name. The caves are based on the real life Barabar Caves, especially the Lomas Rishi Cave, located in the Jehanabad District of Bihar, India which Forster visited during a trip to India.
Exterior of the real Barabar Caves in 1870; Lomas Rishi Cave and (at left) Sudama cave.