deep blue
The view past Roppongi 六本木 and Akasaka 赤坂 with the skyscraper district of Shinjuku 新宿 in the distance, where the north and south towers of the Tokyo Metropolitan Government Building 東京都庁舎 are visible. Incidentally, they're another great spot to view the city from, and entry there is free.
While parts of the city can be hectic, the skyline's slowly pulsing red lights seem to slow things down, if you think to watch them.