Wow. A road widening project in North Yorkshire uncovered the footprints of a hopping or skipping child last year. Unfortunately, as the road was already being diverted around a Roman fort, the footprints themselves could not be preserved. Read about it, and see a photo of the touching prints here. It reminded me of the more powerful, and more ancient (6,000 years old) set of footprints that I saw in Managua, Nicaragua, about 12 years ago. Those include up to 15 sets of adult and child footprints, and are an incredible thing to see. Read a short article about them here.