As New York furiously expands skyward, one of the most exciting projects is happening underground. The Lowline, cofounded by James Ramsey, of the design practice RAAD Studio, and Dan Barasch, innovatively transforming a long-abandoned MTA-owned trolley station below Delancey Street on Manhattan’s Lower East Side into a new kind of public space. Using cutting-edge solarcapture technologies and oldfashioned botany, Ramsey wants to reengineer the dilapidated station into a self-contained ecosystem that serves as a neighborhood resource, an empowering educational hub, and an “oasis for people to retreat to from the chaos of the street.”