All About History
When it was built, the chapel’s dome was the largest north of the Alps. In 1656, a fire destroyed the entire roof and when the dome had to be completely rebuilt, it was made taller than before. Just under three centuries later, the cathedral was heavily damaged as a result of artillery fire by Allied forces during World War II. Thankfully the main structure survived and many of the treasured objects had already been moved for protection — however, it took over 30 years to restore the building completely.