Basque Country
The Castillo de la Monta atop the 123-metre-high Monte Urgull has watched over the Spanish coastal city of San Sebastián since the 12th century.
Hainaut
The Abbey of Aulne was founded around 637 on the wooded banks of the Sambre. Golden years and disaster succeeded for centuries, but the French Revolution dealt the abbey the final blow.
Hauts-de-France
You bump into this brick obelisk at the edge of a forest in northern France. The monument was erected more than two centuries ago.
Hainaut
European heritage organization Europa Nostra has added the ruins of Charles of Lorraine's Palace in Mariemont to its shortlist of most endangered monuments in 2023.
Walloon Brabant
In the valley of the River Thyle, a group of monks came together in 1146 to build the Villers Abbey.
France
After French revolutionaries chased the monks out of Saint-Bertin Abbey in 1791, demolition began.
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On the occasion of International Art Nouveau Day, celebrated each year on June 10, a look at how this ornate architectural movement found its way into the most unlikely of places like coal mines, power stations, and railway yards and the long, sometimes heartbreaking battles to save what remains.
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