 |
| Radio Transmitter Bunker, Spaandam, The Netherlands |
 |
| Type 669 Heenschemolen, The Netherlands |
 | |
| ype 703, Emminkhuizen, The Netherlands |
 |
| Dragon's Teeth Anti Tank Defence, Den Helder, The Netherlands |
 |
| Casemate Type 623, Koudekerke, The Netherlands |
 |
| R636 Fire Control Post, Lekrinckoucke/Zuidcoote, France |
 |
| Type 583a / M 178. Fire Control Post. Heerenduin, Ijmuiden, The Netherlands |
 |
| SK Observation Tower, Fliegerhorst, Belgium |
Source
