The talk at last week's chat covered much of this. I guessed Eddystone Light, which is coorect. The discussion was which of its' incarnations would be the light. Since we were given a suggestion that both the light and its' builder fell down, the presumption is that the light is Second Eddystone Light built by Henry Winstanley. This will have to be a most unusual HL with all the "add ons".

Dave