...."a nazi experimental base" replies BI online....hmmm....with a sidelong glance at the CIA, perhaps?...and yes, they'd bribed whoever-it-was to take the shots etc etc....see previous posts....go figure:

a guy on a computer - Google Maps

https://www.google.com/maps/contrib/114955973692755102478/photos/@62.4655179,-114.3482075,17z/data=!4m3!8m2!3m1!1e1