The wonders of New York City include the Brooklyn Bridge, the Statue of Liberty, the subway system that moves the masses --- and the diversity of those masses itself. If you are, or aspire to be, a New York City know-it-all, be sure to visit the Museum of the City of New York's permanent exhibition, New York at Its Core. We've based this quiz on just 7 items in its vast collection, and reveal how curators tackle 400 years of the city's history in Treasures of New York: Museum of the City of New York, premiering on the PBS stations WLIW and THIRTEEN in May 2017.