The first one looks like a German ww2 fortification.
Now that you mention it, it wouldn't have looked out of place overlooking a beach in Normandy… all it lacks is a muzzle brake protruding from one of the windows.
I'm not sure what the lower one reminds me of - other than a mediocre attraction near some tourist-fleecing venue - but the rest would look right at home decorated with Cyrillic letters and grotesquely stylized, reinforced concrete Soviet soldier statues.
Mr. niteowl77