The Basilica of Our Lady of Bon-Secours is located in the very centre of Bon-Secours, a village on the Franco-Belgian border that is now part of Peruwelz, in the province of Hainaut (Walloon Region of Belgium). It is the centre of a pilgrimage that began in the Middle Ages around an old oak tree dedicated to Notre-Dame-du-chêne-entre-deux-bois).
The current basilica, dedicated to the Virgin Mary, was built from 1885 to 1892 in neo-Gothic style.