The most beautiful church floor I know is that of Saint Matthew's in Malmo, Sweden. I'm not that engaged with the rest of the 1983 structure by architect Sten Samuelson , but the interior work--long pale semicircular pews and a font by Swedish glassmaker Kosta--is sublime.
Take a good look, too, at how removing the heavy 'legs' traditionally seen on wooden pews modernizes their look. I've mentioned before that this is a wonderful way to use pews--which have many benefits as church seating--in a fresh way. These pews appear to float on blue supports that not only blend into the floor but also reference the painted pews traditionally found in Swedish churches.
All photos by Anders Bengtsson, via flickr.