5 places
The ideal time is to get there is early in the morning, before 7 AM. We recommend rounding up the morning with some great sashimi at one of the stalls near the market.
In the immediate surroundings of the Ryougoku Sumo Hall there are several smaller halls in which the individual teams train. With a bit of luck (and after asking politely), they might allow you to watch the training sessions.
We recommend trying to get hold of some souvenirs in the streets leading towards the temple.
One of the biggest festivities in Tokyo, the Sanja-Matsuri, is being celebrated in this area every year in May. During its peak, 100 portable shrines are being carried throughout the streets of Asakusa.
There are free walking tours every Saturday at 13.00, in which English speaking tour guides share their knowledge of the imperial palace. Meeting point is the central gate of the Tokyo Metro Station.