I took a picture of the night view from the Skytree East Tower in the direction of Chiba.
The Tobu Isesaki Line and the Keisei Oshiage Line pass through the lower left, and the Kitajuma River passes through the right side.
The Arakawa River crosses a little above the middle.
Tokyo is the world's largest megacity, surpassing New York, which was the world's number one until 1955, and has continued to hold the world's number one position ever since.