Staten Island's Lemon Creek is one of New York City's least-known waterways. It was perhaps better known in the days when locals made fortunes on oysters, and its banks are home to two well-known mansions, the majestic Seguine Mansion and the Abraham Manee House, New York City's sixth-oldest building. Today, though, it is "New York's best kept secret," said one resident, Nick Gentile. And not just because of its location. The creek has been reshaped by environmental engineers, and it is part of the Staten Island Bluebelt, a carefully-created stormwater management system. Curbed NY features an in-depth photo essay about Lemon Creek.