I love Tokyo Station. Even though this is not Japanese style architecture, I want to introduce this one to foreign tourist. It was originally designed in Meiji-era. During world war two, it was destroyed badly. It has been rebuild in recent years. I can feel the history of this building.
From Muji shop near Tokyo station, you can view entire station building. I recommend you to go this place. There is small space you can drink coffee. It is not crowded.