| Name | Name:Aqua | Name:Bent Pyramid | 
| Height | Height:262 m, (860 ft) | Height:101 m, (332 ft) | 
| Location | Location:Chicago, United States | Location:Egypt | 
| Year Constructed | Year Constructed:2009 | Year Constructed:c. 2605 BC | 
| Description | Description: | Description:Angle of slope decrease during construction to avoid collapse. It was the tallest freestanding structure on land from c. 2605 BC to c. 2600 BC | 
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