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|barrier = city_wall|
|A fortification used to defend settlements in ancient to modern times.|
|Rendering in OSM Carto|
|Used on these elements|
|Tools for this tag|
A city wall is a fortification used to defend a city or settlement from potential aggressors. In ancient to modern times, they were used to enclose settlements.
How to map
|barrier=city_wall||Behaves same as natural=cliff, that is no crossing as left-right are different height. |
Lower side on right side of way direction, marked with dots.
|both sides same height, marked with dots on both sides.|
Use historic=yes for historic city walls.
- defensive_works=* - tags for all defensive structures found in and around fortifications
- historic=citywalls - alternative tagging for historic city walls (rendered in OSM Carto)
- historic=castle_wall - for walls around a castle (not for settlements)
- barrier=wall + wall=castle_wall is used more frequently and stands for the same