4704th tallest in the world (shared with 114 other buildings) 4487th tallest on the Northern Hemisphere (shared with 110 other buildings) 651st tallest in North America (shared with 20 other buildings) 522nd tallest in the United States (shared with 18 other buildings) 80th tallest in Chicago (shared with 3 other buildings)21st tallest built in 1991 12th tallest built in North America in 1991 11th tallest built in the United States in 1991 2nd tallest built in Chicago in 1991546th most northern skyscraper 6657th most southern skyscraper 420th most western skyscraper 6783rd most eastern skyscraper19th tallest within 1 kilometre (2 equally tall buildings in that area) 80th tallest within 10 kilometres (3 equally tall buildings in that area) 80th tallest within 100 kilometres (3 equally tall buildings in that area) 190th tallest within 1000 kilometres (9 equally tall buildings in that area) 532nd tallest within 2000 kilometres (19 equally tall buildings in that area) 709th tallest within 5000 kilometres (21 equally tall buildings in that area)14th most floors within 1 kilometre 41st most floors within 10 kilometres (6 buildings with same floor number) 41st most floors within 100 kilometres (6 buildings with same floor number) 79th most floors within 1000 kilometres (10 buildings with same floor number) 187th most floors within 2000 kilometres (21 buildings with same floor number) 231st most floors within 5000 kilometres (35 buildings with same floor number)79 metres from the closest taller building