Citadel Hills

Montagne de Bueren is a 374-step staircase in Liège, Belgium. The staircase is named after Vincent de Bueren, who defended Liège against an attack by the Duke of Burgundy, Charles the Bold in the 15th century. It was built in 1881 to honour the 600 soldiers who died in the battle.In 2013, Montagne de Bueren was ranked as #1 on The Huffington Post's list of Most Extreme Staircases.

The Citadel of Liège was the central fortification of the strategic Belgian city of Liège until the end of the 19th century. It is located in the Sainte-Walburge neighborhood, 111 metres (364 ft) above the Meuse valley. The first citadel was built on the heights overlooking the city in 1255. It was rebuilt in a pentagonal shape by Prince-Bishop Maximilian Henry of Bavaria in 1650.

The Collegiate Church of St. Bartholomew is an historical building in Liège, Belgium. Founded outside the city walls, it was built in coal sandstone, starting in the late 11th century (the chancel) and lasting until the late 12th century (the massive westwork, with its twin towers which were reconstructed in 1876).

The Ansembourg Museum (Musée d'Ansembourg) is a museum in the Belgian city of Liège. It is housed in the hôtel d'Ansembourg on Féronstrée in the historic heart of the city.