Nea Moní Monastery
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The Nea Moní Monastery is a complex from the Byzantine period that has been on the UNESCO World Heritage List since 1990. It was founded in the 11th century, at the time of Emperor Constantine IX Monomachos. Mosaics decorate the walls and ceilings, part of the dome, the nave and the sanctuary. They are made of natural stone and glass. The monastery suffered a major earthquake in 1881, which caused the collapse of the dome and restoration has been only partial to date.