https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza#Surveys_and_design
https://en.wikipedia.org/wiki/Washington_Monument#Pyramidion .:.
The Washington_Monument is the only structure in DC that was ever allowed to be taller than the Great_Pyramid_of_Giza.
https://en.wikipedia.org/wiki/Washington_Monument#Height
https://www.mentalfloss.com/article/31360/whats-the-point-of-a-pyramid-atop-washington-monument
https://www.nps.gov/articles/000/wamocap.htm
https://en.wikipedia.org/wiki/Washington_Monument#Aluminum_apex
https://www.tms.org/pubs/journals/jom/9511/binczewski-9511.html
https://evolutiondc.museum.gwu.edu/the-washington-monument-capstone/
https://en.wikipedia.org/wiki/Custom_House_Tower For several decades, nothing in Boston was allowed to be taller than the pyramid on top of the Custom House Tower. It would take until the 1960s for the UK, Canada & Australia to permit a building to be taller than the Boston_Custom_House_Tower.
Of course 14_Wall_Street wasn't going to stop much taller buildings to be constructed in NYC. https://en.wikipedia.org/wiki/14_Wall_Street
It wouldn't be until the late 1960s when the Smith Tower was no longer the tallest in Seattle. https://en.wikipedia.org/wiki/Smith_Tower
https://en.wikipedia.org/wiki/Los_Angeles_City_Hall For several decades, nothing in LA was allowed to be taller than the pyramid on top of City Hall.
The Cairo_Tower was the first modern structure in Egypt to be taller than the Great_Pyramid_of_Giza. https://en.wikipedia.org/wiki/Cairo_Tower
https://en.wikipedia.org/wiki/List_of_tallest_buildings_and_structures_in_Egypt
