The complex of religious monuments erected in the period of Bishop Euphrasius, located in the north-eastern part of the urban historic core of the town. It consists of a three-nave basilica, an open atrium connected with a square courtyard, and an octagonal baptistery. The basilica gained the present-day form in the 13th and 15th centuries, and the church-tower was built in the 16th century. The main apse in the basilica has been richly decorated with mosaics which, along with the mosaics in the Church of San Vitale in Ravenna, represent the most significant European specimens of mosaic art. Due to its importance, it has been inscribed on UNESCO's World Heritage list. In the complex of the Euphrasiana which, along with the Euphrasian Basilica itself, consists of numerous other mutually connected buildings and spaces, the static improvement and the securing of construction stability have been performed. In the frame of the project of integrating the Euphrasiana presentations, the construction and handicrafts-works have been executed, as well as a variety of other exceptionally delicate and specific tasks, following the strict restoration and Heritage Authority methods and instructions.