As the capital of England, it's to be expected that London houses some of the most important literary and archeological Anglo-Celtic treasures in the world. Here, in the British Library you can find the Lindisfarne Gospels, the Stonyhurst Gospel (also known as St Cuthbert's Gospel) amongst others. The Museum of London and All Hallows-by-the-Tower (the oldest church in London) host some amazing archeological artefacts - weapons, armour and architecture. For more on the Museum of London, read here. Thanks to for the image.