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How many manhole covers are there in New York City? How are they made? Where do they lead to? In an episode of The Untapped New York Podcast we go over manhole covers 101 and discuss why New Yorkers ...

As the story goes, there’s a famous job interview question first used by Microsoft: “Why are manhole covers round?” Our latest episode of The Untapped New York Podcast covers many of the famous and ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

A manhole cover is generally deemed successful if its round shape keeps pedestrians from plummeting into the earth, and communicates the subterranean systems below through its design. New York City ...