| Name | Name:Aon Center (Chicago) | Name:Ekibastuz GRES-2 Power Station | 
| Height | Height:346 m, (1,135 ft) | Height:420 m, (1,377 ft) | 
| Location | Location:Chicago, United States | Location:Ekibastusz, Kazakhstan | 
| Year Constructed | Year Constructed:1973 | Year Constructed:1987 | 
| Description | Description: | Description:A very tall Chimney . In 2013 it was the tallest Chimney in the world. | 
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