Qasr Libya. Cyrenaica. Libya. View inside of the museum of two of the extraordinary collection of fifty mosaics that were found in the floor of Eastern Church at Qasr Libya.. The lively and colourful mosaics of Qasr Libya are considered some of the finest examples of Byzantine period art ever discovered. Dating from around AD 529-40 during the reign of Emperor Justinian, the mosaics subjects range from animals, plants and mythological creatures.