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- Access denial (Military science) 4
- Defensive (Military science) 4
- Footbridges 4
- Hotels 1
- Landscapes 5
- Palaces 1
- Porches 1
- Postal service 1
- Rubble 1
- Rural roads 1
- Stone walls 4
- Towers 1
- Trees 2
- Uplands 11
- Wooden fences 2