Facade detail

Took a nice little walk in lunchbreak today. As I often do. This time I passed the Finlandia-Hall (designed by architect Alvar Aalto in 1962 and built between 1967-71. The plan for the congress wing was drawn in 1970 and it was constructed between 1973-75)
http://www.finlandiatalo.fi/en/architecture/

Lovely, sunny day today.