Mortemer Abbey was originally built in 1134 on land gifted to the Cistercians by Henry I of England. The stagnant water of the drainage lake, dug out by the monks to dry up the marshy land around the quick running Fouillebroc stream, was called 'dead mere', 'dead pond' - in modern French 'morte mare' - and gave the monastery its name.
The monks constructed what was then one of the largest Cistercian monastery in the world. Over the centuries, the abbey fell into decline and disrepair. It was rebuilt in the 17th Century, but the decline was irreversible and by 1790, when it was dissolved in the course of the French Revolution, only five monks remained.
The 12th century buildings were already more or less derelict by the time of the French Revolution, and subsequent use as a convenient source of cut stone for local construction reduced them to little more than a ruin. Apart from the cloisters, which are relatively intact, there remains only a shell.
The 17th century buildings by contrast are well preserved and open to visitors, with guided tours available most of the year. The abbey site also has a well-maintained 17th century dovecote, which was also used as a gaol house in the 18th and 19th centuries.
References:The Temple of Edfu is one of the best preserved ancient shrines in Egypt. It was built in the Ptolemaic Kingdom between 237 and 57 BC.
Edfu was one of several temples built during the Ptolemaic Kingdom, including the Dendera Temple complex, Esna, the Temple of Kom Ombo, and Philae. Its size reflects the relative prosperity of the time. The present temple initially consisted of a pillared hall, two transverse halls, and a barque sanctuary surrounded by chapels. The building was started during the reign of Ptolemy III Euergetes and completed in 57 BC under Ptolemy XII Auletes. It was built on the site of an earlier, smaller temple also dedicated to Horus, although the previous structure was oriented east–west rather than north–south as in the present site.