aesculapian snake. In regard to the sea, the park's bodies of water are frequented by 105 species of fish. The most abundant species include the flathead grey mullet, thinlip mullet, thicklip grey mullet, european eel, european hake and crucian carp. Attractions The rich history of Butrint has left important vestiges across the territory of the park. The principal architectural monuments in the park includes a Roman theatre, Dionysus altar, Nymphaeum, Thermae, Gymnasium, Forum, Aqueduct, the temples of Minerva and Asclepius, the Lion Gate and a Baptistery situated in Southern Albania and declared a UNESCO's World Heritage Site in 1992. The Roman theatre of Butrint is among the best preserved buildings of the town. It is located just below the Acropolis and facing out over the Vivari Channel. The theatre was built in the 3rd century BC, possibly on the walls of an older and smaller theatre. During the Roman period, it underwent many renovations and extensions. They built boxes for the upper-class above the two entrances of the theatre. The auditorium was also enlarged to accommodate the growing population of the town at that time. The Castle of Ali Pasha Tepelena lies within a small island along the mouth of the Vivari Channel and is named after the Albanian ruler Ali Pasha of Ioannina, who ruled over the Pashalik of Yanina and even attempted to rival the Dey of Algiers in the seas. The castle is a small rectangular structure with battered walls. Along the corners, there are two battered round towers with cannons on its seaward side and two irregularly sized battered square towers equipped with firing loops or windows. Another major attraction is the Lion Gate and one of the six entrances to the city from the 4th century BC. The inscriptions shows a lion, that is about to eat a bull. The lion symbolises the inhabitants of the city and the bull as their enemies. The gate has a very narrow passage to allow as few people as possible to enter at the same time. In the west of the park, there sprawls the rocky Islands of Ksamil that are remote and can only be accessed by boat. Although, two of the islands are connected by a narrow strip of sand. Dolphins such as the short-beaked common dolphin and common bottlenose dolphin are often seen in the waters. See also Venetian Acropolis Castle Venetian Triangular Castle Butrinti