I am a very lucky person. Very lucky indeed.
I live not far from the old USAF airbase at Bentwaters where Carolyn Grace keeps her Mark IX Spitfire.
Therefore on nearly every sunny day there will be a faint drone in the distance of a Rolls Royce Merlin engine purring away. It's unmistakable, my ears pick it up straight away and it never fails to bring a smile to my face. Occasionally she'll bring the Spitfire right over the town and that's a lovely sight to see and sound to hear.
Since I've been living up here in Suffolk I have seen (outside of airshows) P-51 Mustangs, F-15s, A-10s, Hercules, a Tornado, Apaches, Lynxs, Sea Kings, Chinooks, Air Force One (75% sure), E-3 Sentries, and some other aircraft which travel with AF1.
It's a good place for aircraft watching...pretty flat too.