Battery Potter is one of many military batteries on Sandy Hook. Weekend tours are available with very knowledgeable rangers on hand to give you the ins and outs of its past use. We were a little disappointed to hear that there were no ghost stories connected with the building but the stairways are enough to give you that creepy feeling. The third floor is blocked off due to disrepair but you can wander the first 2 floors with ease. Definitely bring a flashlight as lighting is limited to only the hallways and staircases.