Where is Great Britain?

Leicester - Keswick London - Exeter Heathrow Airport (London) - London City Airport Gatwick Airport (London) - Luton Airport (London) Southend Airport (London) - Stansted Airport (London) Heathrow Airport (London) - Gatwick Airport (London) London - Blackburn London - Torquay Swansea - London Heathrow Airport (London) - York York - Edinburgh London - Stratford London - Coventry London City Airport - Edinburgh London - Truro London - Bath Birmingham - Bristol Heathrow Airport (London) - Derby York - Daventry London - Doncaster London - Gatwick Airport (London) London - Boston Heathrow Airport (London) - Chatham Peterborough - Heathrow Airport (London) Heathrow Airport (London) - Bristol Oxford - Cambridge London - Durham Heathrow Airport (London) - Brighton London - Cardiff Glasgow - Sterling Heathrow Airport (London) - Sterling London - Bournemouth Luton Airport (London) - Heathrow Airport (London) London - Gloucester London - Blackpool Plymouth - London Brighton - Rochester Bristol - Mucklesfield Naniton - Milton Keynes London - Manchester London - Bradford London - Wellington Liverpool - Edinburgh Farnborough - London York - Manchester Falmouth - London Exeter - London Cambridge - Oxford London - Newcastle Richmond - Manchester London - New York London - Redditch Edinburgh - Cambridge London - Winchester Birmingham - Boston Stansted Airport (London) - Preston Bath - Cambridge Troubridge - Heathrow Airport (London) Heathrow Airport (London) - Cambridge Bristol - London London - Sheffield Doncaster - Holmes-Chapel Heathrow Airport (London) - Oxford Heathrow Airport (London) - Stevenage Edinburgh - Inverness Heathrow Airport (London) - Leicester Portsmouth - Dover London - Windsor Heathrow Airport (London) - Crowley Gatwick Airport (London) - Crowley Leeds - Manchester Leicester - Corby London - Redding Glasgow - Chester Southampton - Bath Gatwick Airport (London) - Windsor London - Bedford Heathrow Airport (London) - Preston Edinburgh - Oban Aberdeen - London Heathrow Airport (London) - Richmond Heathrow Airport (London) - Canterbury Cambridge - Heathrow Airport (London) Chester - London Heathrow Airport (London) - Portsmouth Dover - London City Airport Portree - Edinburgh London - Liverpool Brighton - Heathrow Airport (London) London - Sunderland Hastings - Brighton Manchester - Dover Norridge - Heathrow Airport (London) Redding - Luton Brighton - Eastbourne Oxford - Gatwick Airport (London) Heathrow Airport (London) - Farnborough London - Halifax London - Colchester Edinburgh - Keithmore