Around 3,000 bodies will be moved to a new burial site as HS2 dig up the site of St Marys Church in Stoke Mandeville.
The remains of the church, which on the HS2 rail link route, is being carefully excavated by HS2 archaeologists.
The church, which history goes back to the 11th century, was demolished in the 1960s, and archaeologists have said to be excited to find out the history of Stoke Mandveille through what they find.