Monkodonja is a hill fort occupied about 1800–1200 BC during the Bronze Age, located near the city of Rovinj. It is located on a hillside surrounded by a spatial area, a form of irregular ellipse stretching east-west, 160 m × 250 m. The settlement was surrounded with three concentric walls and two entrances that have explored so far (so called Western and Northern). The defensive wall surrounding the settlement was about 1 km long, about 3 m wide and at least 3 m tall. It was built by laying stone in the drywall technique. The stone was peeled off the hill, and its removal resulted in a useful surface. Approximately 1,000 people lived in the well-organized settlement: on the highest part was the acropolis, below it the upper town and still lower the lower town.
The Acropolis, where the higher layer of communities lived, had a nearly rectilinear space. In other parts of the settlement there was a crafts area. The houses differed with the position, size and manner of construction, and they were separated by passages and streets. Each had a hearth and numerous fragments of pottery pots originated from local workshops, but pots also came from the far east of the eastern Mediterranean. It was the first finding of fragments of Micens (Bronze Age) bowl in Istria. The Monkodonja was an important point in the communications of the northern Adriatic with Central Europe and the Aegean.References:
Roman Walls of Lugo are an exceptional architectural, archaeological and constructive legacy of Roman engineering, dating from the 3rd and 4th centuries AD. The Walls are built of internal and external stone facings of slate with some granite, with a core filling of a conglomerate of slate slabs and worked stone pieces from Roman buildings, interlocked with lime mortar.
Their total length of 2117 m in the shape of an oblong rectangle occupies an area of 1.68 ha. Their height varies between 8 and 10 m, with a width of 4.2 m, reaching 7 m in some specific points. The walls still contain 85 external towers, 10 gates (five of which are original and five that were opened in modern times), four staircases and two ramps providing access to the walkway along the top of the walls, one of which is internal and the other external. Each tower contained access stairs leading from the intervallum to the wall walk of town wall, of which a total of 21 have been discovered to date.
The defences of Lugo are the most complete and best preserved example of Roman military architecture in the Western Roman Empire.
Despite the renovation work carried out, the walls conserve their original layout and the construction features associated with their defensive purpose, with walls, battlements, towers, fortifications, both modern and original gates and stairways, and a moat.
Since they were built, the walls have defined the layout and growth of the city, which was declared a Historical-Artistic Ensemble in 1973, forming a part of it and becoming an emblematic structure that can be freely accessed to walk along. The local inhabitants and visitors alike have used them as an area for enjoyment and as a part of urban life for centuries.
The fortifications were added to UNESCO"s World Heritage List in late 2000 and are a popular tourist attraction.