Argleton, in Lancashire, the United Kingdom.
It exists on Google Maps—
@BrianDeacon suggested—and he’s right—that this is so, so Annabel Scheme.
One theory is that Argleton could have been deliberately added, as a trap to catch companies that violate the map’s copyright.
So-called “trap streets” are often inserted by cartographers but are, as their name suggests, usually far more minor and indiscreet that bogus towns.
Roy Bayfield, head of corporate marketing at what would be Argleton’s closest university, Edge Hill, in Ormskirk, was so intrigued by the mystery that he walked to the where the internet indicated was the centre of Argleton to check that there was definitely nothing there.
When Mr Bayfield reached Argleton—which appears on Google Maps between Aughton and Aughton Park—he found just acres of green, empty fields.
Of course he did. Everybody knows the only way to visit Argleton is to flash your GPS unit’s firmware with a new version from this site. Then you wait until the night of a new moon, tap in A-R-G-L-E-T-O-N, blindfold yourself, and follow the unit’s spoken directions. Follow them exactly. Follow them no matter what they say.
Do that, and you’ll get to Argleton.
But remember… Argleton is a trap.