If you're anything like like me (zillenial sci-fi nerd), you grew up experiencing a futurist and optimistic vision of japan through its media, both during and after the bubble era. Think Patlabor, Macross/Robotech, Gundam, Digimon and the like.
Walking through Odaiba basically felt like living in that world!
Clean, broad streets, lots of greenery, bike paths, Fuji Television Building, Tokyo Bay, Tokyo Big Sight, neatly arranged residential buildings, autonomous train with great view, rainbow bridge, Divercity Unicorn Gundam, no massive crowds and I did not even visit any high commitment museums or teamlab or anything.
Just being there was fun! I almost felt nostalgia in a country I have never visited before!
So if you like sf (mecha, sentai, anime/manga) media of that era, definitely take a stroll through Daiba. It's not very "japanese" but it might be exactly what you are looking for.
by imnotokayandthatso-k