Tokyo Dome City aerial view

The most centrally located amusement park in Tokyo is in Bunkyo, next to the Tokyo Dome stadium. It features a large centreless Ferris wheel (the "Big O") and an impressive roller coaster, interestingly designed to fit into a relatively small area.

With a diameter of 60 meters, the "Big O" is the world's largest centreless Ferris wheel, and the "Thunder Dolphin" roller coaster passes right through its center, while also passing through a hole in the nearby LaQua building (the white triangular construction in the middle of the photo).