On today's episode Chris and Rachel discuss a recent visit to the historical monuments in Philadelphia, PA and Gettysburg. In the last segment they talk about the recent discovery of a grind stone in Orkney, Scotland and what it means for our understanding of the Neolithic in that area. Links * Archaeological Investigation of the Carriage House, Independence National Historical Park, Philadelphia, Pennsylvania [https://irma.nps.gov/DataStore/DownloadFile/603561] * Archaeological Investigations at the Tower Stairhall, Independence National Historical Park, Philadelphia, Pennsylvania [https://irma.nps.gov/DataStore/DownloadFile/603550] * Archaeological Monitoring of A Structural Engineering Study of the Retaining Walls at Independence Square [https://irma.nps.gov/DataStore/DownloadFile/603558] * Archaeological Report on the Investigation of a Brick Vault Catchment "Cistern Number 2," Beneath the Cement Floor Basement of Old City Hall [https://irma.nps.gov/DataStore/DownloadFile/603535] * Archaeological Survey Report, Area F, Independence National Historical Park, Philadelphia, Pennsylvania [https://irma.nps.gov/DataStore/DownloadFile/603556] * Dock Creek Archaeology Archaeological Project 13 Recommendations [https://irma.nps.gov/DataStore/DownloadFile/603991] * Neolithic grind stone ploughed up in Orkney [https://www.thetimes.co.uk/article/neolithic-grind-stone-ploughed-up-in-orkney-n7qkcpmsnhttps://www.thetimes.co.uk/article/neolithic-grind-stone-ploughed-up-in-orkney-n7qkcpmsn] Contact * Chris Webster * chris@archaeologypodcastnetwork.com Affiliates * Wildnote [http://www.wildnoteapp.com/] * TeePublic [https://www.teepublic.com/?ref_id=5724&ref_type=aff] * Timeular [https://timeular.com/ref/chriswebster/]