barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dwall
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dditch
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dretaining_wall
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dcity_wall
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dfence
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dhedge
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dbollard
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dgate
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dlift_gate
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dkissing_gate
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dcycle_barrier
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dblock
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dcattle_grid
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dtoll_booth
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dstile
barrier
https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dwire_fence