Nezu Shrine will hold a traditional festival on September 20-21. Nezu Shrine was established in 1705 and is one of Tokyo Jisha (東京十社 – Tokyo 10 shrines), which was designated in the first year of Meiji Restoration. A visit to Nezu Shrine is highly recommended.
The two photos above are from “Little Butterfly / L*B” as is the one on gmap.jp top page. You can see more of her photos by going to her Flickr.com site → “Little Butterfly / L*B”
There will also be a dance by the guy below on Sept 21 (Sunday) at 2PM. Sanza no Mai.
Whether you are going there to see the festival or to enjoy the sites, definitely worth a visit! They also have a wonderful azalea festival in April.
Here is a video of Nezu Shrine.