Designated a national historic site, this unexpected find boasts one of the largest town ruins in Japan. Perched in a narrow valley between modest mountains, it's easy to see why the Asakura clan would have built their small fortified city here: it's very beautiful. You're free to wander along the restored street of merchants houses and stroll through the lush grounds, following the remnants of the buildings up the hillside. It's a wonderful spot to sit, picnic and contemplate.