Botallack Tin Mines, Cornwall, England (@ John Miller/Age Fotostock)
- Location, location, location - isn\t that the first rule when building a house?""Not when your workplace is under the sea
- These historic buildings have a special resonance today.""Where is the patron saint of tin miners being toasted?
- Metal excavation isn\t the only thing this part of England is famed for.""What was discovered in the ground nearby in 1865?
- Two derelict engine houses can be found on the cliffs, connected to a mine 500m below sea level.""We wouldn\t recommend exploring it without one of these