Uploaded on 2014-12-07 by PiotrU

[1]: https://edxuploads.s3.amazonaws.com/14179847395312646.jpg On this picture we can see construction yard in Poznań in Poland, a historical building renovation and expansion. In typical historical building in Poland we have ceiling made of wood and walls made of bricks, but nowadays we use more globalized materials such as reinforced concrete and concrete blocks.