Kockum Landswerk
I hope these links worked
https://upload.wikimedia.org/wikipedia/commons/f/f5/T-28_tank_in_Mikkeli_20130531_001.jpg
http://www.heppu.jossain.com/jalbum/museot/Mikkeli/Panssarikumpare/index.html
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Parola Armory Museum, some new shelters
Panssarimuseo / Parola Tank Museum