Hey AlexMa0666,
if in Tokyo, you also should check out the following:
- Asakusa Shrine:
Tokyo Travel: Asakusa
- the Tsukiji Fishmarket: very early in the morning but worth it!
The TSUKIJI MARKET.HOME
- Sumo Training: many stables around Ryogoku Station; the link is a professional guide only in case your Japanese is not that good then consider this option too:
Sumo Training Tours
- China Town (Yokohama): about 20 mins from Tokyo station
- Kabuki: cheap tickets for foreigners are available and you can leave any time when you had enough.
More info at:
Kabuki-za Theatre – An Unmissable Tokyo Experience
Good luck,
Japean