19 skyscrapers in a circle of one square kilometre
3358th tallest in the world (shared with 78 other buildings) 3196th tallest on the Northern Hemisphere (shared with 78 other buildings) 436th tallest in North America (shared with 5 other buildings) 361st tallest in the United States (shared with 5 other buildings) 51st tallest in Chicago (shared with 1 other building)19th tallest built in 1991 10th tallest built in North America in 1991 9th tallest built in the United States in 1991 Tallest built in Chicago in 1991515th most northern skyscraper 7112th most southern skyscraper 385th most western skyscraper 7242nd most eastern skyscraper17th tallest within 1 kilometre (1 equally tall building in that area) 51st tallest within 10 kilometres (1 equally tall building in that area) 51st tallest within 100 kilometres (1 equally tall building in that area) 125th tallest within 1000 kilometres (2 equally tall buildings in that area) 370th tallest within 2000 kilometres (5 equally tall buildings in that area) 472nd tallest within 5000 kilometres (8 equally tall buildings in that area)33rd most floors within 1 kilometre (2 buildings with same floor number) 74th most floors within 10 kilometres (4 buildings with same floor number) 74th most floors within 100 kilometres (4 buildings with same floor number) 156th most floors within 1000 kilometres (16 buildings with same floor number) 424th most floors within 2000 kilometres (32 buildings with same floor number) 545th most floors within 5000 kilometres (39 buildings with same floor number)171 metres from the closest taller building