Henry Hudson discovered New York Bay and the river that bears his name in September of 1609. While this was by accident, he wasn’t just sailing aimlessly. He was led there…by mistaken maps…but how?

How one construction team raised the roof -- literally.

The London Underground had been completed - the world’s first subway system - was completed in 1863, but it was plagued by the dirty soot of its steam-powered trains. Alfred Beach promised something similar, and yet entirely different for New York City. But his dreams for the future of transportation would be mired in the politics and economics of the present.