Kyororo is an amazing facility in Matsunoyama. The building itself is part of the Echigo-Tsumari Art Field and is a huge iron structure that is changing color as it rusts. It is home to the Echigo-Matsunoyama Museum of Natural Science that does a great job of explaining the local nature.
The outside of the facility is impressive. The inside is a paradise for kids. There is so much to do and it is all very hands on. There are boxes you can put your hands into and try to figure out by touch what is inside. There are tanks of snake, frogs and fish. There are bird skeletons and a craft shop. There is a tower with 160 steps up to a look-out point. It is all educational but more than that, fun.