The pickle capital of the world is Kyoto, Japan.
If you enjoy bread and butter pickles, you will love the many varieties of crunchy, sweet-and-sour, yellow pickled radish there. They also have many choices for fans of sour, salty, and spicy, and every type of vegetable from cabbage, cucumber, eggplant, and radish to seaweed of many colors. There are entire pickle STORES that sell close to a hundred kinds, usually with samples available so you can taste each one.