Harajuku in Tokyo is where the young, especially the ladies, go for fashion.  It’s a very vibrant part of the city with tight streets and small buildings around the tree lined Omotesando Avenue. I went to Harajuku with the tours I was with on my first and third trip to Japan. Harajuku is the second oldest RR station in Tokyo, Tokyo Station being the oldest.

https://en.wikipedia.org/wiki/Omotesand%C5%8D

The entry to Takeshita St, Where the young go to shop.

some fashions come from unusual sources.

Here’s my flikr album with more pics.

A Tokyo Street View Video.