 Bernini's transformation of the site is entirely Baroque in concept.Where Bramante and Michelangelo conceived a building that stood in "self-sufficient isolation", Bernini made the whole complex "expansively relate to its environment".Banister Fletcher says "No other city has afforded such a wide-swept approach to its cathedral church, no other architect could have conceived a design of greater nobility ... (it is) the greatest of all atriums before the greatest of all churches of Christendom."