Infantry casemate bunker concrete fortress LO36 type "XI./186/C-" in Ústí nad Labem, Czechia
http://www.ropiky.net/dbase_objekt.php?id=1096630620
Best viewed using Anntotation premade tour. Also zoom in for interesting historical details inside.
Map: https://goo.gl/maps/GACG47ghnw9kUURr5
Former part of Czechoslovak border fortifiation built in 1930's, now under heritage protection and a museum.
http://www.fortif.net/files/overview.php / https://en.wikipedia.org/wiki/Czechoslovak_border_fortifications
Photogrammetry scan 700 x 24Mpix + drone by https://sketchfab.com/kubacpetr / 3x16K textures including Normals and Occlusion / .OBJ
Available for 3D printing. Done by for LO36.cz fan community.