The Saviour Monastery of St. Euthymius was founded in the 14th century, and grew in importance in the 16th and 17th centuries after donations by Vasili III, Ivan IV and the Pozharsky family, a noble dynasty of the region. Among the buildings erected during this period were the Assumption Church, the bell tower, the surrounding walls and towers, and the seven-domed Cathedral of the Transfiguration of the Saviour. The cathedral was built in the style of the Grand Duchy of Vladimir-Suzdal. Its interior contains restored frescoes by the school of Gury Nikitin of Kostroma, dating from 1689. The tomb of Dmitry Pozharsky lies by the cathedral wall.
The monastery also contains a prison, built in 1764, which originally housed religious dissidents. The prison continued in use during the Soviet period, and among its better known prisoners was field marshal Friedrich Paulus, who was incarcerated here for a time after his surrender at Stalingrad. The prison now houses a museum about the monastery's military history.References:
The Château Comtal (Count’s Castle) is a medieval castle within the Cité of Carcassonne, the largest city in Europe with its city walls still intact. The Château Comtal has a strong claim to be called a 'Cathar Castle'. When the Catholic Crusader army arrived in 1209 they first attacked Raymond-Roger Trencavel's castrum at Bèziers and then moved on to his main stronghold at Carcassonne.
The castle with rectangular shape is separated from the city by a deep ditch and defended by two barbicans. There are six towers curtain walls.
The castle was restored in 1853 by the architect Eugène Viollet-le-Duc. It was added to the UNESCO list of World Heritage Sites in 1997.