Name | Name:One Liberty Place | Name:Bent Pyramid |
Height | Height:288 m, (945 ft) | Height:101 m, (332 ft) |
Location | Location:Philadelphia, United States | Location:Egypt |
Year Constructed | Year Constructed:1987 | 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 |