Did you know? Time since building of the Great Pyramid of Giza / Cheops / Khufu (4,580 y) is 2.5 x Time since the birth of Diophantus (1,814 y)
Cost of building the `One World Trade Center` in New York City (2013) ($3.8billion)
/fact/cost-of-building-the-one-world-trade-center-in-new-york-city-2013
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If this was a standard unit ...