In one of his last acts as mayor of New York City, Rudy Giuliani signed an order permitting the High Line, that beloved elevated railroad ruin which snaked down the west side of Manhattan, to be torn down. Everyone who had managed to climb up onto the High Line loved it: the wildflowers growing through disused tracks, the birds that followed the path north in spring, and south again in fall—that rural feeling magically flowing through the city like an unbidden river. Who didn’t love the High Line? Those who owned the land beneath it and longed to erect high-rise buildings on the site, if only the High Line wasn’t blocking their way. And so when Giuliani signed that order, the Friends of the High Line, the small community organization led by Robert Hammond and Joshua David, sprang into legal action, seeking an injunction.