When I began planning my #Britain trip, one of my first tasks was building a list of #cathedrals in #England, #Wales, #Scotland, #NorthernIreland and #Ireland. Pulling information from Wikipedia and Gcatholic online, I had a fairly thorough list. I did have to search around for Orthodox cathedrals separately to feel the list was complete. Because there turned out to be 20 entries on my list for #London, I turned to Google Maps to locate them and determine how best to organize