34. Bodies Below Greenwich Village
The City of New York knew it could encounter human remains, which is why the group worked with archaeologists from the beginning of its project to install a water main. As workers dug near Washington Square Park, they found two burial chambers housing crypts thought to be over 200 years old. From 1797 to 1825, the area served as a public burial ground, which easily explains the dozens of bones found remaining in the field to this day. City officials worked to revise their construction plan to avoid any impact to the burial vault, which likely included changing the course of the subterranean pipes.