The discovery of remains from Roman times in Furnaux indicates that the village has been inhabited since at least the first century AD. The village church is a Gothic building from the 16th century which has been rebuilt frequently during the centuries. It contains unusually well-preserved funerary monuments from the same century, as well as an exceptional baptismal font in Romanesque style from the 12th century, made of black marble from Dinant. There is also a Neoclassical château in the village, dating from the 17th century but rebuilt at the end of the 19th century.