The Hells of Beppu in Beppu, a city on the island of Kyushu, are a series of hot springs that are too hot for bathing, but are a unique and interesting sight to see.
The Himeji Castle in Himeji is a UNESCO World Heritage Site and one of the most beautiful and well-preserved castles in Japan.
Japan has a trend called "kawaii," which means cute, and it's reflected in everything from fashion to food.