Ever wonder what’s under your feet as you walk down Atlantic Avenue in Brooklyn? Well, apparently just the oldest subway in the world, hidden away for more than a century until a curious 19-year-old social engineered his way into it in the mid-80s. The tunnel was built in 1844, in response to the growing trend of locals being maimed or killed by the LIRR (without ‘modern’ airbrakes, the trains took up to 8 city blocks to stop). While it remained in use for less than 20 years, the legend of this once-hidden landmark has all the elements of an epic: pirates, bootleggers, gruesome death, ghosts and even religious uprising.

If you’d like to check it out yourself, the guy who discovered it runs a tunnel tour once a month. You actually enter through a manhole in the middle of Atlantic Avenue and you can walk from Court St all the way down towards the water at Hicks St.