Gruuthusemuseum
Arguably the city's finest museum lies within a palace built in the 15th century for the Van Gruuthuses, a powerful family who made their money on the exclusive right to sell gruut, an herbal mixture used for flavoring beer. Louis, the patriarch behind its rise, was a businessman, diplomat, patron, and a lover of culture. The museum tells the story of Bruges through its most powerful family and their legacy of art and relics, and through the museum's own collection of crafts—lace, amber, porcelain, jewels—that formed the backbone of the city's trade. The building interior itself is magnificent in its own right---it's a warren of narrow staircases joining rooms with grand stone fireplaces, and some with balconies offering beautiful vistas across the city. As a mark of the family's power, a private chapel in the palace has a window built directly into the adjoining Onze-Lieve-Vrouwekerk, allowing family members to attend services there without having to mingle with the general public.