Voyage into deep time on our York Earth Walk, as our expert guides unveil the prehistory of York. You'll walk the city's hidden Ice Age landscape, meet its scientific pioneers, and discover fossils in cobblestones, and the oldest building in York. You'll also get to stride across the entire county of Yorkshire in just a few seconds, as we visit a pebble mosaic of The Map That Changed The World!We are also happy to offer the York Earth Walk as a private tour.