We wrote about the LowLine park concept a couple months back, but at the time it was just a crazy design for a futuristic underground public space in Manhattan’s Lower East Side. Now, it’s on Kickstarter, and the project’s creators are making some serious headway in actually getting construction moving. They’re asking for $100,000 to build and display a working demo to show that their blend of solar tech and natural sunlight could actually make an appealing park below street level. Check out the project over at Kickstarter.