Someone said :
There are lots of interesting places to visit in the U.K. For city life, obviously London wins hands down - there is such a vibrant energy about the place and it has an unrivalled amount of cultural attractions - such as the art galleries, the West end, the museums. Manchester is interesting too - I wouldn't rate Birmingham much though. York, Oxford, Cambridge and Bristol are all lovely and historic. Bath is a gem.
For scenery there's The Scottish Highlands and Islands, North Wales and the Lake District, Cornwall and the Cotswolds. East Anglia, a part of England tourists rarely venture to, is very nice - boating the Norfolk Broads for instance.
I plan to do a mini tour of stately homes in England with a friend later in the year. We will probably use Oxford as a base.
I would definitely recommend North Wales for the scenery and fantastic mountain hiking trails.
Back in the day I did the Snowdon, Cader Idris, the Tryffin... All incredible!