Name | Name:U.S. Steel Tower | Name:Great Pyramid of Giza |
Height | Height:256 m, (840 ft) | Height:146 m, (479 ft) |
Location | Location:Pittsburgh, United States | Location:Egypt |
Year Constructed | Year Constructed:1970 | Year Constructed:c. 2560 BC |
Description | Description: | Description:By 1439, the Great Pyramid had eroded to a height of approximately 139 m (456 ft). Tallest freestanding structure on land from c. 2560 BC to c. 1311 AD |