The Tokyo Skytree is the tallest tower in Japan (634 m.), and is located in Sumida.
What you see right next to it is the Asahi Beer Hall! Looks like it might be as tall as the Skytree itself, but big nope. I would recommend you all to pay a visit to this building! You can find a lot of restaurant and shopping options inside, anime halls, and even an aquarium and an observatory right next to it.