Agam Kuan: Continues to be a mystery

Agam Kuan, one of the ancient well and archaeological site in Patna, India. It is said to date back to the period of Mauryan emperor, Ashoka (304–232 BCE). Circular in shape, the well is lined with brick in the upper 13 metres (43 ft) and contains wooden rings in the remaining 19 metres (62 ft). According to a myth, the well has a subterranean link with the Patala (netherworld) or hell; this was inferred on the basis that a saint found a heavy log in the well which was supposed to have been lost in the sea. Another geo-hydrological link suggested that Agam Kuan is connected to the Ganges river.