Ｃｏｏｌｅｓｔ Ｕｎｄｅｒｇｒｏｕｎｄ Ｔｒａｖｅｌ Ｓｐｏｔｓ

Underground exploration is part adventure， part history， and part plain curiosity. “Often， it’s like discovering something that’s slipped through time to the present day. It brings history to life，”says Steve Duncan， an urban explorer in New York City. Over the past decade， Duncan says he’s seen a real growth in the public’s desire to investigate what’s below the surface. “Part of what makes it exciting is that there’s alwaysmore to dig up.”