Barnard Castle, Co. Durham

Mathematical Gazetteer of the British Isles

The Bowes Museum contains the automaton silver 'swan as large as life' by James Cox, c.1770. It is still working -- I saw it on a TV show in summer 1994 -- and is certainly one of the finest automata ever made.
See THIS LINK

The Mathematical Gazetteer of the British Isles was created by David Singmaster.
The original site is at THIS LINK.