The video is an alphabetical list of notable architects with their most well-known building. They tried to feature a range of nationalities in the lot, but they had to leave a lot of great architects out since the list had to be narrowed to the number of letters in the alphabet.
Concept and Animation: Federico Gonzalez and Andrea Stinga
Art Direction: Federico Gonzalez
Music: The Butterfly by Eugene C. Rose and George Ruble (Creative Commons)