The Planetarium

 Tokyo Disney Sea is full of all sorts of hidden and secluded treasures amidst all of its open grandeur, and one of my favorites is the Chamber of Planets, located inside the Fortress Explorations playground area on the Mysterious Island coast of Mediterranean Harbor.  This beautiful space features a large scale model of the solar systems rotating around a luminous sun, with an illuminated map of the cosmos arching on the dome overhead.  It's a quiet space that doesn't seem too often frequented--if only because it's a bit off the beaten path.  But that makes it feel like a tranquil surprise, and for some with the right timing, their own personal astronomical observation deck!

The Chamber of Planets can be found deep in Fortress Explorations at Tokyo Disney Sea.