San Climent de Taull
http://pantocrator.cat/en/veure_mapping_sant-climent-de-taull/
This video is extremely interesting as it also show what most likely it did look when it was complete
https://vimeo.com/73376537
The next video is more or less the same as the first link I gave you.
The next video is from the Catalonian Museum in Barcelone and in English