Hollogne is primarily made up of long farms and limestone houses from the early 19th century, showcasing some beautiful half-timbered structures. Rue du Petit Bois offers a lovely viewpoint over the first villages of the Namur province. The village of Hollogne is the only village in the municipality of Marche-en-Famenne that does not have its own church. In fact, it previously depended on the parish of Waha and the now-disappeared Saint-Martin church. Besides its many historic farms, Hollogne also features an old inn dating back to the 19th century, which highlights the village's significance as an important transit point. In the cemetery, there is also a 19th-century cemetery chapel, and along Rue Saint-Denis, you will find a wayside shrine dedicated to Saint Barbara.

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