Musée Schaerbeekois de la Bière
As much a love letter to Belgian beer culture as a museum. It was started by one person donating 300 (empty) bottles of Belgian beer, then volunteers sought out all kinds of brewing paraphernalia. Now it has over 2,500 bottles and some 5,000-plus glasses, as well as endless signs, logos, bits of brewing equipment, and relics of breweries long since departed. It's only open two days a week (Wednesday and Saturday), and tickets include a tasting of Schaerbeekoise and Eizelskop beers.