Le 1250 Boulevard René-Lévesque, still known as La Tour IBM-Marathon, is a 226 m (743 ft), 47-story skyscraper in Montreal, Quebec. As of 2005, it is the tallest in the city, before the nearby 1000 de La Gauchetière which was completed the same year (1992). Despite being 6 metres shorter than the 1000, it is built on higher ground and thus also reaches the maximum allowed elevation from sea level (that of Mount Royal).