Thank you @discoveringarni. I am not an Architect, but a doctor who love traveling :) I am amazed with wonderful buildings or structures I found during I am traveling.
Yeah, I just noticed the Pyramid structure. I am doing a search, and finally I found that the glass pyramid (like Louvre museum) is located in front of Aiao Nessei Building. It’s just about six minutes walk from Keio Plaza Hotel (where we stayed during in Tokyo). It’s still in Shinjuku district.
Hello Doc 😊 thank you so much for locating this and sharing it with us. Interesting to have spotted this structure there.