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 Fushimi Inari Shrine in Kyoto is famous for its thousands of vermilion torii gates, which create a stunning tunnel-like effect.
In Japan, there is a cat island called Tashirojima where there are more cats than people.