bouillon belgium. view of the medieval castle in the city of bouillon along the semois river in the belgian ardennes

ancient architecture ardennes beautiful belgian belgium belgiumbouillon bouillon bridge building buildings castle city day entrance europe famous forest fortified grass high hill hills history horizon house houses impregnable inner medieval mountains norman north old overlooki overlooking panorama powerful reflection river roof roofs santa semois slopes small stone summer sunny tiles tourism tower towers town travel view views village visible walls