"Peter Masson" writes:

Bill Hayles has a lovely story of confusion between Oval and Yeovil. ;-)

The best one (possibly apocryphal) I have heard was a foreign woman at
Paddington who wanted to get to Turkey (presumably via Heathrow) but
was sold a ticket and put on the train to Torquay.

Then there are always the people who arrive in Leeds (Yorkshire)
looking for the castle (Kent).