pylon (n.)
- archway
- barbican
- beacon
- beam
- belfry
- bulkhead
- campanile
- colossus
- column
- cupola
- derrick
- dome
- door
- doorjamb
- doorpost
- doorway
- gate
- gatepost
- gateway
- hatch
- hatchway
- lantern
- lighthouse
- lintel
- marker
- mast
- minaret
- monument
- obelisk
- pagoda
- pilaster
- pillar
- pinnacle
- pole
- porch
- portal
- postern
- pyramid
- racon
- scuttle
- shaft
- skyscraper
- spire
- standpipe
- steeple
- stile
- stupa
- threshold
- tollgate
- tope
- tour
- tower
- trap
- turnpike
- turnstile
- turret
