The Japanese Sword Museum is a must do for anyone that has an interest in the skilful art of sword-smiths.

The building has three stories, the first floor shows a brief history of the building itself as well as the anatomy of a sword and how they are crafted, this is a very informative exhibit and it really prepares you for the following room.
You then travel to the third floor to visit the exhibition hall, this is where the historic swords are showcased. The hall is filled with an array of swords dating all the way back to the 12th century. The exhibits are all in Japanese, however, there is a QR code you can scan on your phone to view the exhibit in English. There is extensive information on every sword, including; who made the sword, what year it was crafted and a lot of interesting history on the different sword-smith schools and design inspirations.
After you finish in the main hall you can then get some fresh air on the third floor balcony, where you get a great view of the beautiful Former Yasuda Garden bellow and the surrounding city.
The Japanese Sword Museum is a great historical experience and is definitely worth the time and money while you are visiting Tokyo.