Depends which country you're looking at. If it's the UK, then the
Bones outlines page has outlines for:
Airfield plans
Runway centrelines
Lower Airway centrelines
Lower Airway edges
Upper Airway centrelines
ATZ and MATZ
CTA (Control Area)
TMA (Terminal Control Area)
CTR (Control Zone)
FIR, ATSDA and HUACA airspace.
Military ARA, ATA, MTA, TRA, AIAA, E3D Orbit and AARA airspace
TACAN Routes
VOR Roses
I use some of these - see example screenshot.