The Pont du Diable (Devil's bridge) is a medieval stone arch bridge at Céret, built between 1321 and 1341. It spans the river Tech with a single arch of 45,5 metres.
According a legend, the locals wanted a bridge to be built across the river and called upon the devil to build it for them. The devil agreed on the condition that he would claim the first soul to cross the bridge. Once the bridge was built the locals sent a cat across for the devil to claim its soul. Then for many years afterwards no person would cross, just in case – a legend common to many devil's bridges in France.
At the time of its construction it became the world's largest bridge arch, being bigger than the Ponte della Maddalena in Italy which held the world record until then. It remained so until 1356, when the Castelvecchio Bridge in Verona became the new largest bridge. Damaged during the war of the First Coalition (1792-1797), French general Luc Siméon Auguste Dagobert wanted to blow it up to keep the Spanish army from going back to Catalonia. The bridge was saved just before being destroyed thanks to the action of Representative Joseph Cassanyes and restored later.
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.