The London Underground is a marvel of its kind - as the original underground metro system, it's been the map for a great many other cities.
But it's name is...well, misleading. More than half of it is above ground, for one.
That's right, 156 of the 272 stations on the map are actually above the ground. In the case of Whitechapel, the Underground even boasts tracks above the Overground. Confusing, right?
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TfL put together a handy map for people with claustrophobia or anxiety, who could find largely underground journeys stressful.
Mapping out these stations "will help a range of customers navigate the network more comfortably by showing them routes they can take to avoid areas with large stretches of tunnels," according to TfL.
Nicky Lidbetter, Chief Executive from Anxiety UK, said: "For those with anxiety conditions such as panic attacks and claustrophobia, we know that travel by the underground can be problematic and challenging."
So, for those of you who could find comfort in knowing how much of each Tube line is actually above ground, or for those of you who are simply nosy like us, here are the exact London Underground stations on each line that aren't actually underground:
Bakerloo line
The Bakerloo line starts at Harrow & Wealdstone, continuing above ground for another seven stops before Queen's Park. The Tube then dips below ground until the end of the line.
Harrow & Wealdstone
Kenton
South Kenton
North Wembley
Stonebridge Park
Harlesden
Willesden Juntion
Kensal Green
Queen's Park
Central line
A lot of the West London stations on the Central line stay above ground. The line dips below ground just before you arrive at Shepherd's Bush, continuing this way all the way to Stratford. The line then dips up again for the rest of the stops, with the exceptions of Wanstead, Redbridge, Gants Hill and some other areas in between stations.
West Ruislip
Ruislip Gardens
South Ruislip
Northolt
Greenford
Perivale
Hanger Lane
North Ealing
Ealing Broadway
West Acton
North Acton
East Acton
White City
Leyton
Leytonstone
Snaresbrook
South Woodford
Woodford
Roding Valley
Chigwell
Hainault
Fairlop
Barkingside
Newsbury Park
Buckhurst Hill
Loughton
Debden
Theydon Bois
Epping
Circle line
The Circle line runs abiove ground from Hammersmith to Edgeware Road, before descending underground for the rest of the journey, other than Sloane Square and South Kensington.
Hammersmith
Goldhawk Road
Shepherd's Bush Market
Wood Lane
Latimer Road
Ladbroke Grove
Westbourne Park
Royal Oak
Edgware Road
Sloane Square
South Kensington
District line
West and South West stops on the District line are above ground until arriving at Earl's Court. The stops through Central London are they largely underground until Bromley-by-Bow, and the line from then on stays above.
Ealing Broadway
Ealing Common
Acton Town
Chiswick Park
Turnham Green
Stamford Brook
Gunnersbury
Richmond
Ravenscourt Park
West Kensington
Earl's Court
South Kensington
Sloane Square
West Brompton
Parsons Green
Putney Bridge
East Putney
Southfields
Wimbledon Park
Wimbledon
Bromley-by-Bow
West Ham
Plaistow
Upton Park
East Ham
Barking
Upney
Becontree
Dagenham and Heathway
Dagenham East
Elm Park
Hornchurch
Upminster Bridge
Upminster
Hammersmith & City line
This line starts above ground from Hammersmith, before going underground as it heads more into the city. It then pops above ground at Farringdon, down again, and again at Bromley-by-Bow for the rest of the line.
Hammersmith
Goldhawk Road
Shepherd's Bush Market
Wood Lane
Latimer Road
Ladbroke Grove
Westbourne Park
Royal Oak
Edgware Road
Farringdon
Bromley-by-Bow
West Ham
Plaistow
Upton Park
East Ham
Barking
Jubilee line
Again, the Jubilee line starts above ground in Stanmore, before descending below ground before Swiss Cottage. It then continues below ground until just before Canning Town, dipping below again for Stratford and ending above ground at Stratford International.
Stanmore
Canons Park
Queensbury
Kingsbury
Neasden
Dollis Hill
Willesden Green
Kilburn
West Hampstead
Finchley Road
Canning Town
Stratford International
Metropolitan line
All of the West London stations on the Metropolitan line are above ground, before the line heads underground just after Finchley Road for the rest of the line.
Amersham
Chesham
Chalfont & Latimer
Chorleywood
Rickmansworth
Watford
Croxley
Moor Park
Northwood
Northwood Hills
Pinner
North Harrow
Harrow-on-the-Hill
Uxbridge
Ickenham
Ruislip
Ruislip Manor
Eastcote
Rayners Lane
West Harrow
Harrow on-the-Hill
Northwick Park
Preston Road
Wembley Park
Finchley Road
Northern line
A lot of the Northern line is underground - it also includes the deepest station on the network (Hampstead) in case you were wondering.
Morden is the only stop above ground before the Northern Line descends below ground. It then continues to be below ground until the Edgware branch arrives at Golders Green and the High Barnet branch arrives at Each Finchley.
When each branch arrives at these stops, they then stay above ground until the final stops.
Morden
Golders Green
Brent Cross
Hendon Central
Colindale
Burnt Oak
Edgware
East Finchley
Finchley Central
Mill Hill East
West Finchley
Woodside Park
Totteridge & Whetstone
High Barnet
Piccadilly line
Where the Heathrow branch on the Piccadilly line starts underground, the Uxbridge branch starts above ground.
The Heathrow branch rises above ground before Hounslow Central, and the Uxbridge branch continues above ground until both branches join at Acton Town, and dip below ground before Earl's Court.
The line then continues through the city underground until it pops up again at Arnos Grove, back down again for Southgate, and above ground at Oakwood and Cockfosters.
Uxbridge
Hillingdon
Ickenham
Ruislip
Ruislip Manor
Eastcote
Rayners Lane
South Harrow
Sudbury Hill
Sudbury Town
Alperton
Park Royal
North Ealing
Ealing Common
South Ealing
Northfields
Boston Manor
Osterley
Hounslow East
Hounslow Central
Hounslow West
Acton Town
Hammersmith
Barons Court
Arnos Grove
Oakwood
Cockfosters
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