English: Blue glass windows in the Don Bosco Sanctuary of Brasilia.
"The pointed arch windows are filled with blue stained glass which lights up the interior in a deep colour. The four rectangular windows are not blue but a brilliant purple colour. The stained glass was designed by Claudio Naves and created by Hubert van Doorne, a Belgian artist who worked in Sao Paulo. The windows create a starry night effect within the building. Some of the glass panels swivel to allow fresh air into the building." ref. Third World Architecture