London, England travel. We visit St. Paul's Cathedral, one of the iconic figures of the London skyline. This is one of the largest churches in the world, although there's an issue as to whether the place is a 'church' or 'cathedral' or 'basicala' etc. In any case, this place is impressive! They're not too keen on filming, so less than ideal photography. More than a day trip from Thornbury Castle, and certainly worth the travel!