I’m a big fan of New York City’s High Line park—and who isn’t. So, I was happy to hear that the test lab for the city’s proposed Low Line Underground Park has opened. For the next five months, visitors can tour the exhibition in the old Essex Market building to see innovative plans for transforming a disused Lower East Side Manhattan trolley terminal into a solar-powered subterranean park. Take a look at the video below and visit the website to learn more.