Namur, the cap­i­tal of the province of the same name, is a hid­den gem. Built on the Meuse Riv­er, it is dom­i­nat­ed by a sprawl­ing hill­top citadel. The war­ren of streets below is filled with shops, restau­rants, and his­toric build­ings, includ­ing a UNESCO-list­ed bel­fry.