On the first image, a traditional "cellar" as found everywhere - not always so nice as this one - in Northern Portugal. Interesting to note how ventilation and protection against gnawers are carefully treated.
The old door illustrated on the second photo is of a quite common type in Portuguese villages' "noble" houses or public buildings.
Like are very thick walls of old stone houses (photo 3).
And finally, the typical wooden ceiling of a church, here in Satao, Northern Portugal.