The Great Pyramid of Giza was the tallest structure in the world from 2560 BC to 1311 AD

Accordingly to Wikipedia, the Great Pyramid of Giza was initially built at 146.5 metres (481 feet), and was the tallest man-made structure in the world for more than 3,800 years. Sorry Neil, I have to "bitch-slap" (your words) you on this and point out that the Eiffel tower was not the towering winner your claim claimed it to be. According to Wikipedia, the title for tallest man-made structure went to the Lincoln Cathedral and "took the cake" in 1311. Not to diminish the length of this reign but the pyramids held the title for tallest man-made structure for almost four thousand years (1311 AD - 2560 BC)[^1].

[^1]: In this case I have to give props to Neil for his justification of using AD/BC over CE/BCE and not adopting the atheist label.