First construction efforts of the original structure date as far back as the first half of the twelfth century. Major reconstruction, repair, and restoration in the latter half of the fifteenth century, and lasting until 1511, imbued the St. Stephen’s Cathedral with a strong Gothic touch. 230,000 glazed tiles line the rooftops of the rear of the cathedral, depicting the city’s and it’s former empire’s coat of arms in dizzying detail.