The alleys that crisscross Amsterdam’s main canals have become one of the most vibrant and popular shopping spots in town. The tiny shops that line the streets sell everything from period clothes to designer wear, from Art Nouveau lamps to novelty kitchen goods. Once a realm of quirky specialty shops, the Negen Straatjes have now moved more mainstream, with a predominance of fashion boutiques, but you’ll still find a shop that specializes in toothbrushes, one that sells only cookbooks, and plenty of ideas for gifts.