The current church building in Govan was constructed in 1888, although the site is one of the oldest places of Christian worship in Scotland. Unusually, the axis of the church was turned to orientate north-south rather than the traditional east-west orientation, but this allowed the main door to face south to the main street. It is believed that the site's earliest Christian activity began sometime in the 6th century AD. Archaeological excavations in the 1990s uncovered two early Christian burials beneath the foundations of a later church. Despite this early activity, it wasn't until the 9th and 10th centuries that Govan Old rose to prominence.
The church now houses a remarkable collection of early Christian stones, The Govan Stones. They are an unique collection of early medieval stones carved in the 9th – 11th centuries to commemorate the power of those who ruled the Kingdom of Strathclyde. 31 monuments dating from this period include beautifully carved crosses and cross shafts, and 5 magnificent hogback stones.
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.