New York Mayor Bill de Blasio has high hopes for creating more affordable housing in New York City – and he’s willing to build big to make it happen. But the push to build up in an already jam-packed city has prompted concerns about congestion, pollution and strains on transit and social services. DenseCity, in words, images, sounds and interactive graphics and news quizzes, tells the story of New York’s struggle to navigate a future with more people and less space.