The ambo of Westminster Cathedral, London, is located in the midst of the nave, on the mid-day side of church and extends from the pier into the nave. Note the undercroft is empty, because he is not here. He is risen as he said. A simple lectern holds the book for the lector or deacon to proclaim the scripture. Watch the Gospel Procession at the mass celebrated by Pope Benedict XVI, Westminster Cathedral, September 2010.