Richard Pim designed and built the 25ft tall clock, complete with a 3ft wooden cuckoo which pops out every hour and chimes with a huge pipe organ.

It is powered by a complex system of cantilevers, counterweights and pulleys which convert energy from a passing stream.
Mr Pim, who is a retired hydrogeologist used his experience to design and build the wooden structure at his water gardens in Herefordshire. Read More