In brief
The historical image is also the result of the post-war reconstruction, which should be said clearly.
Useful to know
During the Warsaw Uprising in 1944, over 85% of the historic center was destroyed. After the war, a five-year campaign rebuilt the Old Town with its churches, palaces and market space. UNESCO sees this as an outstanding example of near-total reconstruction. [1]
Therefore, the ancient appearance of a facade does not prove that the visible material is intact from the Middle Ages. In this case, the value includes the effort to restore a historical environment and the public memory associated with it.
When describing, use both information at the same time: what historical image is being restored and when the reconstruction took place. This is more accurate than a confrontation between a "real" and a "false" city. Warsaw poses a difficult architectural question: how does the community restore a place of historical significance after destruction, without the restoration itself being hidden from the narrative.
Sources
For further detail and to check the information: