Lamport Hall is not primarily a gnome attraction but it is the home of Lampy, the oldest surviving garden gnome in England, and possibly the world. There is some confusion over the dates that I am trying to get to the bottom of but presumably some time around 1880 Sir Charles Isham brought back twenty one gnomes from Germany to put in his rockery. His daughters never did like the gnomes saying (apparently) that Sir Charles thought more about his beloved gnomes than he did of them and when he died rumour has it that they shot the gnomes with air rifles, although if they were shot at all I think it more likely that a shotgun would have been used. Fortunately for posterity, however, one of the gnomes escaped due to being hidden in the crack of the rockery and was later discovered. In 1997 Lampy was insured for one million pounds but it has been suggested that this was something of a marketing ploy to draw people to a local garden center where he was on display.
The gnome is on display in Lamport house for all to view. There are also several newspaper cuttings about the gnome and a few other gnomes (including a gnome shaped nut cracker) on display there. You can (and we did) also get a replica Lampy for twenty quid, it is not really suitable for putting in the garden though. The rockery is still there and there are several gnomes and bits of gnomes there to be spotted (not original ones).
If you are going to make the trip there (and I think any dedicated gnome enthusiast should) then only a few miles down the road is the little grey men trail which might be worth looking in on.