Airport in Central Park?
An international airport in Central Park? This "proposal" sought to take advantage of Manhattan's largest "undeveloped and underutilized site" Central Park, by constructing a modern airport.
From the proposal:
If you didn't catch it reading the proposal, the Manhattan Airport Foundation (2009) was a prank. And even if there was a serious proposal to pave the "lungs of New York" Central Park is a scenic landmark and protected.