expression of the Mendelsohn's genial mind. The Jewish law states that the Koheni (the Priest) and the dead body can't be under the same roof. Mendelsohn found a special solution to this problem: he built two domes one in the other, where the internal one do not touch the external one, creating this way two roofs. While the external one creates the shape of the entire building, the internal one gives personality to the central room. Of square shape, the dome rise up decorated by blue and green mosaics that, from the bottom the line where the ornament with the Isaish's book quotation was to the peak of the roof, design lines and patterns. At the peak, in correspondence of the Star of David of the floor, there is another Star of David, smaller, but far brighter, made of golden pieces. The contrast between the soft and the dark parts of the mosaic makes the golden parts even shiner of how they effectively are, creating a spot of light right in the center of the dome. It is now possible to observe the structure of the domes by going upstairs where some windows have been created to show visitors the Mendlsohn’s architectural trick. The last room is at the opposite side of the commemoration room and it can be defined as the Koheni room. This chamber was divided in three, now is an open space. The central part was probably the spot where the body was taken and placed on the chariot that would lead the body to the cemetery, passing thought a big door where on the top was written in Hebrew "For surely there is an end; and thin expectation shall not be cut off" from the Proverbs' book 23:18. The left part was the room where the Kohenim prepared themselves for the ceremony, there is, in fact, another door, probably the priest-door, because the Kohenim are not allowed to pass from the same door as dead body. References External links borussia.pl Houses completed in 1913 Erich Mendelsohn buildings Buildings and structures in Olsztyn Art Nouveau architecture in Poland 1913 establishments in Germany