Berat Castle dates mainly from the 13th century and contains many Byzantine churches in the area and Ottoman mosques. It is built on a rocky hill on the left bank of the river Osum and is accessible only from the south.
After being burned down by the Romans in 200 B.C., the walls were strengthened in the 5th century under Roman Emperor Theodosius II to protect from Barbarian incursions into the Balkans. They were subsequently rebuilt during the 6th century under the Emperor Justinian I and again in the 13th century under the Despot of Epirus, Michael I Komnenos Doukas, cousin of the Byzantine Emperor. This last phase can be seen as a Monogram formed by red bricks set in a wall of the castle. The castle was under the rule of John Komnenos Asen in the mid-14th century The main entrance, on the north side, is defended by a fortified courtyard and there are three smaller entrances.
The fortress of Berat in its present state, even though considerably damaged, remains a magnificent sight. The surface that it encompasses made it possible to house a considerable portion of the cities inhabitants. The buildings inside the fortress were built during the 13th century and because of their characteristic architecture are preserved as cultural monuments. The population of the fortress was Christian, and it had about 20 churches (most built during the 13th century) and only one mosque, for the use of the Turkish garrison (of which there survives only a few ruins and the base of the minaret). The churches of the fortress were damaged through years and only some have remained.
References:The Roman Theatre of Mérida is a construction promoted by the consul Vipsanius Agrippa in the Roman city of Emerita Augusta, capital of Lusitania (current Mérida). It was constructed in the years 16 to 15 BCE. One of the most famous and visited landmarks in Spain, the Roman Theatre of Mérida is regarded as a Spanish cultural icon and was chosen as one of the 12 Treasures of Spain.
The theatre has undergone several renovations, notably at the end of the 1st century or early 2nd century CE (possibly during the reign of Emperor Trajan), when the current facade of the scaenae frons was erected, and another in the time of Constantine I (between 330 and 340), which introduced new decorative-architectural elements and a walkway around the monument. Following the theatre"s abandonment in Late Antiquity, it was slowly covered with earth, with only the upper tiers of seats (summa cavea) remaining visible.