St. Patrick's Cathedral-Dublin, Ireland. Church of England/Ireland should give St. Patrick's back to the Catholics who started and built this church. It was taken over by the Church of England when Henry VIII broke with the Roman Catholic Church.
St. Patrick's Cathedral in New York. An excellent example of Neo-Gothic design. This photograph from the skyscrapers surrounding it shows the form of the cross that all cathedrals exhibit - as seen from the perspective of heaven.