The remains of the Greek settlement in the locality of Centocamere, and those of the Tempio di Marasà, which have yielded a great variety of relics related to religion, art, and culture, have more recently been added to those of a sanctuary dedicated to Demetra Thesmophoros, stretches of the Greek city walls, and significant monumental evidence from the Roman Imperial age, such as the Museale Casinò Macrì complex.
In the first half of the fifth century BC, the Locrians demolished their archaic temple and rebuilt a new temple in the Ionic style. The temple was designed by Syracusan architects around 470 BC, based on the idea of Hiero I of Syracuse.
The new temple occupies the same place as the previous one but it has a different orientation. The temple was destroyed in the 11th century. The dimensions of the temple were 45.5 by 19.8 metres. The cella is free of supports on the central axes. The pronaos had two columns. The temple has seventeen Ionic columns on the long side, and six on the front. The height of the temple was 12 metres.
The theatre was built in the fourth century BC not far from the ancient city, in the Contrada Pirettina, taking advantage of a hillside slope. The original structure had space for more than 4,500 people; now only the central part of the theatre is visible. Part of the Cavea was cut into the rocks. Each plane was divided in 7 wedges between 6 scales. A horizontal separation divided the upper theater from the lower theatre.
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.