After taking the ropeway up to the platform, the view is amazing. You can see Lake Chuzenji, Mount Nantai, and Kegon Falls. There are a lot of people riding the ropeway, so it's best to avoid weekends if you can.
Doraemon was my favorite manga as a kid! The museum is packed with Doraemon-themed exhibits, and I couldn't stop being amazed—it really felt like I was reliving my childhood.