Leeds
Sheffield
Doncaster
A few years ago we stayed in a cottage near Brecon, beautiful place but to get to the cottage involved a 15 minute drive down extremely narrow lanes, some of them literally a few inches wider than my car. This wouldn't have been an issue if we'd had clear views of the road ahead but each side was bordered by really high hedges and it was a twisty road...absolutely no idea if there was traffic coming the other way.
I detested it, it marred the holiday somewhat and now if we book anywhere I check on Google maps and Street View to make sure it's easy to get to.
Oh, and the A180. If you've ever been on it you will know why.