Fléron

The Fort de Fléron is one of twelve forts built around Liège, Belgium, in the late 19th century. The overall Fortified Position of Liège was a constituent part of the country's National Redoubt. Fort de Fléron was built between 1881 and 1891 according to the plans of General Henri Alexis Brialmont. Contrasting with the French forts built in the same era by Raymond Adolphe Séré de Rivières, the fort was built exclusively of unreinforced concrete, a new material, rather than masonry. The fort was heavily bombarded by German artillery in the Battle of Liège. Fléron was upgraded in the 1930s in an attempt to forestall or slow an attack from Germany. Located in the center of Fléron, the fort has been buried and is surrounded by apartments.

Retinne (Walloon: Ritene) is a village of Wallonia and a district of the municipality of Fléron, located in the province of Liège, Belgium. It is just north of the centre of Fléron.

Beyne-Heusay (French pronunciation: ​[bɛn øzɛ]; Walloon: Binne-Heuzea) is a municipality of Wallonia located in the province of Liège, Belgium. On January 1, 2006, Beyne-Heusay had a total population of 11,711. The total area is 7.32 km² which gives a population density of 1,600 inhabitants per km². The municipality consists of the following districts: Bellaire, Beyne-Heusay, and Queue-du-Bois.

The Fort d'Évegnée is one of twelve forts built around Liège, Belgium, in the late 19th century. The overall Fortified Position of Liège was a constituent part of the country's National Redoubt. Fort d'Évegnée was built between 1881 and 1884 according to the plans of General Henri Alexis Brialmont. Contrasting with the French forts built in the same era by Raymond Adolphe Séré de Rivières, the fort was built exclusively of unreinforced concrete, a new material, rather than masonry. The fort was heavily bombarded by German artillery in the Battle of Liège in World War I and again at the opening of World War II. It is now an industrial site, used for the storage and testing of rocket propellant.

The Soumagne Tunnel is the longest rail tunnel in Belgium, with a length of 6,505 metres (21,342 ft). Built on the HSL 3 line of the Belgian TGV service for Brussels-Liège-Cologne, the tunnel was completed in 2004. The new line was opened on 12 June 2009. The tunnel links the Liège conurbation with the Herve plateau at a depth of 120 metres (390 ft). Construction and outfitting of the tunnel took place from 2001 to 2005, with the first trains passing through in 2009. The entrances are at Vaux-sous-Chèvremont 50°36′12″N 5°38′14″E and Soumagne 50°36′40″N 5°43′33″E. The tunnel passes under Chaudfontaine, Fléron, Romsée and Ayeneux. The bored section is 5,940 metres (6,500 yd), extended by covered sections of respectively 177 and 388 m. Dozens of geological layers of differing hardness had to be tunnelled through, lime layers needing to be blasted through with dynamite. The tunnel reaches a depth of 127 m in some areas; it has an average ramp height of 1.7%, with a maximum of 2% at the entrance in Soumagne. The free space profile in the tunnel is approximately 69 m2 (740 sq ft), which restricts speeds to 200 km/h (120 mph).

The Fort de Chaudfontaine is one of twelve forts built around Liège, Belgium, in the late 19th century. The overall Fortified Position of Liège was a constituent part of the country's National Redoubt. Fort de Chaudfontaine was built between 1881 and 1884 according to the plans of General Henri Alexis Brialmont. Contrasting with the French forts built in the same era by Raymond Adolphe Séré de Rivières, the fort was built exclusively of unreinforced concrete, a new material, rather than masonry. The fort was heavily bombarded by German artillery in the Battle of Liège. The fort is now used as an adventure park.

Trooz (French pronunciation: ​[tʁo]; Walloon: LiTrô) is a municipality of Wallonia located in the province of Liège, Belgium. On July 1, 2012, Trooz had 8,432 registered inhabitants, of whom 4,199 were male and 4,233 female. The total area is 24.00 km² which gives a population density of 351 inhabitants per km².Trooz is situated on the Vesdre River, and is part of the GREOA (Groupement Régional Économique des vallées de l'Ourthe et de l'Amblève) regional grouping for economic purposes. The municipality consists of the following districts: Forêt, Fraipont, Nessonvaux. The town centre is the former hamlet of Trooz, in the district of Forêt, which gave its name to the municipality.

Wandre (French pronunciation: [wɑ̃dʁ]; Walloon: Wande) is a sub-municipality of the city of Liège located in the province of Liège, Wallonia, Belgium. It was a separate municipality until 1977. On 1 January 1977, it was merged into Liège.

Chaudfontaine is also a brand of mineral water, owned by The Coca-Cola Company.Chaudfontaine (French pronunciation: [ʃofɔ̃tɛn] (listen); Walloon: Tchôfontinne) is a municipality of Wallonia located in the province of Liège, Belgium. On January 1, 2006, Chaudfontaine had a total population of 21,012. The total area is 25.52 km² which gives a population density of 823 inhabitants per km². The municipality consists of the following districts: Beaufays, Chaudfontaine, Embourg, and Vaux-sous-Chèvremont. Some of its best-known enterprises are Galler chocolates, Magotteaux and Chaudfontaine drinking waters. Chaudfontaine was strongly hit by the 2021 European floods.

Herstal (French pronunciation: [ɛʁstal] (listen); Walloon: Hesta), formerly known as Heristal, or Héristal, is a city and municipality of Wallonia located in the province of Liège, Belgium. It lies along the Meuse river. Herstal is included in the "Greater Liège" agglomeration, which counts about 600,000 inhabitants. The municipality consists of the following districts: Herstal, Liers, Milmort, and Vottem. A large armaments factory, the Fabrique Nationale or FN, and the biggest industrial zone of Wallonia (Haut-Sart) provide employment locally.

Blegny (French pronunciation: ​[bleɲi], before 2001: Blégny; Walloon: Blegné) is a municipality of Wallonia located in the Province of Liège, Belgium. On January 1, 2006, Blegny had a total population of 12,799. The total area is 26.07 km² which gives a population density of 491 inhabitants per km². The municipality consists of the following districts: Barchon, Housse, Mortier, Saint-Remy, Saive, and Trembleur (town centre).