Glandèves Cathedral - Credit: Wikimedia Commons
Glandèves Cathedral ( or Cathédrale Notre-Dame-de-la-Sède d'Entrevauxalso de la Sed or de la Seds), now the Chapelle de l'Hôpital, is a Roman Catholic church located in the former town of Glandèves, Alpes-de-Haute-Provence. It was abandoned in the Middle Ages for the more secure site of the present Entrevaux. Only the chevet remains, which has been converted into a chapel. The cathedral is a national monument of France. Ancienne cathédrale de Glandèves, Notre-Dame de la Sed, dite aussi chapelle de l'Hôpital Read more on Wikipedia
Source: en.wikipedia.org