Last year, I went to Lucerne to visit Hauf Cathedral. I happened to meet the church to worship and I couldn't venture to disturb it. These re-visits Lucerne, and the first attraction in the morning went straight to Hauf Church to take a photo to make up for the regret of the last time. Hauf Cathedral is an important church in Lucerne, with the world's largest organ, the interior layout of the church is very solemn, the twin towers of the building is very conspicuous and beautiful, more than a thousand years ago, after the vicissitudes of retention and publication to the present, it is not easy.