The unfinished obelisk is the largest known ancient obelisk and is located in the northern region of the stone quarries of ancient Egypt in Aswan (Assuan), Egypt. It was ordered by Hatshepsut (1508–1458 BC), possibly to complement the Lateran Obelisk (which was originally at Karnak, and was later brought to the Lateran Palace in Rome). It is nearly one third larger than any ancient Egyptian obelisk ever erected. If finished it would have measured around 42 m (approximately 137 feet) and would have weighed nearly 1,200 tons.