Very cool blueprints have emerged for the Low Line; Under Delancey Street on Manhattan’s Lower East Side lurks 60,000 square feet of vaulted ceilings and cobbled streets, sitting unappreciated in the dark. The Williamsburg Bridge railway terminal was abandoned in 1948, and has now become the focus of a group of entrepreneurs with an ambitious plan: to pipe natural light underground and create a subterranean park. (source: Sustainable Cities)