barbican (n.)
- abatis
- bank
- banquette
- barricade
- barrier
- bastion
- battlement
- belfry
- breastwork
- bulwark
- campanile
- cheval-de-frise
- colossus
- column
- cupola
- curtain
- derrick
- dike
- dome
- drawbridge
- earthwork
- enclosure
- entanglement
- escarp
- escarpment
- fence
- fieldwork
- fortification
- lantern
- lighthouse
- loophole
- lunette
- machicolation
- mantelet
- mast
- merlon
- minaret
- monument
- mound
- obelisk
- outwork
- pagoda
- palisade
- parapet
- pilaster
- pillar
- pinnacle
- pole
- portcullis
- pylon
- pyramid
- rampart
- redoubt
- scarp
- sconce
- shaft
- skyscraper
- spire
- standpipe
- steeple
- stockade
- stupa
- tope
- tour
- tower
- turret
- work