If you want to see Aeroplanes of the second war then try and pay a visit to RAF Coningsby Lincolnshire Museum.
They have lots of aircraft in working order. Spitfires, Hurricanes, Bombers etc.
The guided tour is first class. I have been there twice now. Once on company business and once as a visitor. Both times were very enjoyable.
RAF Coningsby has its own web site. There you can get all the info you need to travel etc.
Coningsby is a Operational airfield, so you may get a look at the modern day aircraft ( probably Tornadoes) landing and taking off.
Not far from Coningsby is RAF Cranwell. And near there is another museum well worth a visit as well.
PS> The countryside in and around both Units is very picturesque