The Holy Monastery of Great Meteoron - This is the largest of the monasteries located at Metéora. It was
erected in the mid-14th century and was the subject of restoration and embellishment projects in 1483
and 1552. The building serves as the main museum for tourists. The Katholikon (main church), consecrated
in honour of the Transfiguration of Jesus was erected in the middle of 14th century and 1387/88 and
decorated in 1483 and 1552.
(source: Wikipedia)