District guide · London
Historic monuments, Theme: Nature in London Borough of Hillingdon, London
Hillingdon, the westernmost London borough, encompasses outer London's western reaches and includes Heathrow Airport alongside rural areas and RAF Northolt Aero...
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Editorial responsibility: Elena Voss · Roavina Travel Editor
Hillingdon, the westernmost London borough, encompasses outer London's western reaches and includes Heathrow Airport alongside rural areas and RAF Northolt Aerodrome. The Polish War Memorial, Battle of Britain Bunker, and Harmondsworth Great Barn stand among its historical sites. Nature reserves and country parks dominate the landscape, offering little of conventional tourist interest beyond these specific attractions.
Checked 2026-09-04
Practical information
- Language spoken
- English; Welsh is official in Wales
- National practical orientation; regional and minority languages may also be used
- Dialling code
- +44
- International calling code; local area and mobile prefixes still apply
- Currency
- Pound sterling (GBP)
- Use the official local currency; card acceptance varies by place
- Emergency number
- 999 or 112
- Use only for an emergency; tourist assistance may use a separate number
- Plug type
- Type G · 230 V
- Check that chargers support the recorded voltage before using an adapter
- Tap water
- Safe from the mains
- Public water suppliers regulate mains drinking water; use cold mains taps
Top things to see
Ranked by importance — sitelinks, pageviews and heritage status, not editor preference.
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