Philippeville — The Secret Register

Your quest for the Secret Register begins on the Place d'Armes, the beating heart of Philippeville. Built during the city's foundation in 1555 by Philip II of Spain, this square served as a military and civilian gathering point. The 17th-century arcades and buildings surrounding it, typical of Vauban's fortified squares, transport you directly into the atmosphere of fortified bastides. It was here that orders were given, and troops assembled before departing for distant campaigns. Observe the architectural details, each stone tells a part of the history of this fortified city in Wallonia.

A short distance away stands the Hôtel de Ville de Philippeville, a key building in our investigation. Built between 1555 and 1560 as the communal house of the new city, its Flemish Renaissance architecture and bell tower, classified as part of Wallonia's monumental heritage, testify to the ambition of its founders. Listed in the Inventory of Walloon Region's real cultural heritage in 1997, it was the scene of decisions that shaped Philippeville. It was within its walls that registers were sealed, and defense plans debated, long before Vauban's reinforcements.

The route then leads you to the imposing Remparts de Philippeville, bastioned fortifications erected from 1555 based on Italian plans, then reinforced by Vauban between 1690 and 1700. With a perimeter of approximately 3 km, 12 bastions, and 4 monumental gates, this fortified complex, classified in 1938, is one of the best preserved in Wallonia. As an engineer, you will decipher the defensive strategies and imagine the colossal work required for their construction and maintenance. These ramparts have protected the city and its secrets for over four centuries.

The Église Saint-Philippe, built in 1559 and dedicated to the patron saint chosen by Philip II, offers a break in your military exploration. Its late Gothic style, enhanced by a 12th-century Romanesque bell tower from an earlier chapel, evokes an even older history. The interior houses a classified organ from 1750 and 16th-century baptismal fonts, witnesses to the lives and prayers of Philippeville's inhabitants. It is a place where time seems suspended, where echoes of past centuries resonate between the vaults, contrasting with the rigor of the fortifications.

Your mission finally leads you to the Souterrains de Philippeville, the heart of your investigation. This network of underground galleries, built in 1698 by engineer Antoine Deshayes under Vauban's direction, extends for an estimated 2.5 km, connecting bastions and casemates. Partially accessible, they are mentioned in 18th-century military registers kept in the State Archives. It is here, in the darkness and silence, that the last clues of the Secret Register await you. By completing this GPS treasure hunt, you will have not only discovered the history of Philippeville but also embodied a forgotten chapter of its heritage, an interactive visit that will remain etched long after the journey ends.