The Battle of Britain Memorial Flight (BBMF) is at RAF Coningsby (only 3 miles away) with a Lancaster bomber, Dakota, 6 x Spitfires and 2 x Hurricanes.  It has a superb visitor centre and is open to the public for free.

http://www.raf.mod.uk/bbmf

      

         

 

The Lincolnshire Aviation Heritage Centre (10 miles away) is the restored WWII base RAF East Kirkby.  It has a working Lancaster bomber, NAAFI, Control Tower and award winning musuem.

 http://www.lincsaviation.co.uk