The largest known obelisk, the unfinished obelisk, was never erected and was discovered in its original quarry. It is nearly one-third larger than any ancient Egyptian obelisk ever erected (the Lateran Obelisk in Rome); if finished it would have measured around 41.75 metres (137.0 ft)[5] and would have weighed nearly 1,090 tonnes (1,200 short tons), a weight equal to about 200 African elephants.[6]