Pawapuri Water Temple
From Bihar Tourism website..
Lord Mahavira, the final Tirthankar and founder of Jainism, breathed his last at this place, and was cremated here around 500 B.C. It is said that the demand for his ashes was so great that a large amount of soil was removed from around the funeral pyre, creating the water tank. A marble temple, the “Jalmandir” [Water Temple], was later built in the middle of the tank, and is now a major pilgrimage spot for Jains. Another Jain temple called Samosharan is located here.
PHOTO GALLERY: PAWAPURI WATER TEMPLE