An earthquake damaged lighthouse which teetered on the edge of a cliff at Godley Head near Christchurch in New Zealand has been rescued in what has been one of the more interesting construction related challenges thus far in the Christchurch rebuild.

Following an earlier unsuccessful attempt on July 5, the Department of Conservation used professional abseilers and a helicopter last week to lift the structure off the cliff in an operation that took around two hours. The lighthouse’s copper dome, which weighs about a tonne, was lifted off first along with…