IMG_20190717_081406 Wooden bridge or sewer segment
IMG_20190717_075907 Wooden barrel and water pipes
20190715_154953 The bunker porch
Behind those two rectangular entrances from the previous picture lies a "porch". Nothing too interesting here, except perhaps for the two rows of iron hooks along the top and the bottom of the wall; I'm not sure what they are for.
This bunker sits in a hillside in Pūčkoriai, near Pūčkorių Atodanga ("Pūčkoriai exposure"), about halfway between the road and the beginning of the trail, so it's fairly easy to find. There are three more bunkers in this neighborhood, but they were on the other side of a road that does not have a convenient pedestrian crossing, and I had limited time, so I didn't try to find them. A few more details about this bunker can be found in a web page dedicated to the so-called Polish Defense Ring, however, it is in Lithuanian.
The Polish Defense Ring consists of about 8 clusters of bunkers that roughly form a ring around Vilnius. They were built around 1920-1930 by the Polish army, which had occupied Vilnius at the time. Their purpose was to defend Vilnius from Soviet invasion, but that didn't work out very well. When the Soviets invaded Vilnius, not a single shot was fired from the bunkers.
Unlike the Antakalnis bunkers, the pictures of which you can find elsewhere in this album, this one does not have metal bars blocking the entrance. You can go inside and even take the stairs down to the lower level; I didn't do that, since I would only do this if I had somebody with me and was sure of my ability to get help if something happened. Plus, I wasn't sure how well cell phones work down there in the basement, under a layer of stone.