You can visit the Yubatake. This is Kusatsu-onsen's landmark waterfall and an unforgettable spot. 4437 litres every minute.
The Maebashi Prefectural Office is a towering coral-colored granite edifice topped and highlighted with purple glass, a symbol of great pride to Gunma residents. Draw your own conclusions about the symbolism while enjoying the view of the otherwise unremarkable capital city from its free observation deck.
You can visit Mt. Shirane, except in winter. On the top of Mt. Shirane, there is a lake called Yugama. Yugama is emerald green, but it seems to be changing throughout the four seasons. The pH level of the lake is about 1.0, so it is known as a lake where the acidity is the highest in the world. It is a famous sightseeing spot.