The ninth fort in Kaunas

These photos are from the ninth fort.  It was one of the forts around Kaunas that was built for WWI and was then appropriated by the nazis and ultimately used to kill 30,000 Jews.  There was also a daring escape from that place by 64 men who had been assigned the task of burning the bodies as the war wound down so the world would not know what had happened there.
Here are some photos from the area under they fort from which The escape was made, and also the monument constructed there in 1983, I think.