Name | Name:Key Tower | Name:Red Pyramid of Sneferu |
Height | Height:289 m, (948 ft) | Height:105 m, (344 ft) |
Location | Location:Cleveland, United States | Location:Egypt |
Year Constructed | Year Constructed:1991 | Year Constructed:c. 2600 BC |
Description | Description: | Description:Tallest freestanding structure on land from c. 2600 BC to c. 2560 BC |