Is there anywhere worth stopping between Tokyo and Kyoto?

Im trying to plan out my 2 week trip to Japan and so far i have Tokyo, Osaka, and Kyoto on my list of places to visit. However, from looking at the map there just seems to be too much space between Tokyo and Kyoto without visiting somewhere in between, if even for only a day. Are there any places of note between these 2 cities that i should be aware of? Any recommendations?