Onze-Lieve-Vrouwekathedraal (Cathedral of Our Lady): You can't easily miss this towering example of the Flemish Gothic style if you visit Antwerp, or even pass close to the city. Its 123m (400-ft.) spire dominates the area. This is in fact the biggest church in the Benelux countries, with seven naves and 125 pillars. But oversize statistics are not Our Lady's only attraction -- there are no fewer than three Rubens masterpieces inside, as well as paintings by other prominent artists.

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