Hadrian's wall divides Devon and Cornwall, Land's End marks the northern tip of Britain and the Jurassic Coast is in Scotland.
That's the view of baffled Britons across the country, who took part in a new survey.
A poll of 1,000 people by Virgin Trains found a lack of general knowledge among Britain's young people, blamed on a reliance on modern technology such as Google maps and sat nav.
The poll quizzed people aged 16 to 60-plus on the location of some famous areas of Britain, how long it took to travel between some cities and typical train journey times.
The results showed that one in five people thought Hadrian's Wall divided either Devon and Cornwall, Yorkshire and Lancashire, England and Wales or even north and south London.
While 68 per cent correctly said the Jurassic Coast is in Dorset and Devon, 12 per cent placed it in Scotland, seven per cent in Northumberland or north Wales and six per cent in Norfolk.
And 87 per cent rightly said Land's End was in the south of the UK, 13 per cent said it was in the north, rising to a third of those aged under 30.
Arthur Leathley, communications director of Virgin Trains, said: 'Our research shows that significant numbers of people in Britain are vague about the location of some of our most famous landmarks.
'But technology such as sat nav, Google maps and route finder websites mean that people can almost point and go these days, without having to know the geography of the country.
