The Oratory of San Marco is a Byzantine-style oratory situated in the old town centre of Rossano, a frazione of Corigliano-Rossano.
The church was built in the 10th century by St. Nilus the Younger as a place of retirement for nearby eremite monks and is one of the most important testimonies to Byzantine art in Italy. It is the most ancient monument in the city and was originally dedicated to St. Anastasia. It has a Greek cross plan with five characteristic domes on cylindrical drums and, in the past, the entire building was supported by very thin columns then these were covered with cement after restoration works. Between 1928 and 1934, during the restoration works, a fragment of a fresco picturing a Virgin Hodegetria was discovered.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.