Riddle Tower

The Riddle Tower is a circular tower in the Palace of Shadow in Paper Mario: The Thousand-Year Door. The tower is in the center of a large open plaza surrounded by streams. Inside is a spiral staircase with several doors on each floor. Mario had to solve the riddles in each room to earn a Pedestal Key. The pedestals to the keys would appear later once Mario got the Star Key from Gloomtail's room.

At the top of the Tower is a large mobile of stars and planets. A lock is there for the Star Key, which will in turn make the locks for the Pedestal Keys appear. Once all eight of the keys where in place the mobile was activated. The hallways floor to Gloomtail's room was lowered into stairs, revealing the next stage of the Palace of Shadow. On the wall by the stairs is glowing patterns of stars and rings. The background music that will be playing in that area is a remixed version of Bowser's Castle and the underground theme from Super Mario Bros.. Mario had to fight Beldam, Marilyn, and Doopliss outside in the plaza before being able to access this new area.

South-west room, 1st floor
"Beyond, beyond, beyond... Complete All Seven... Before, before..." This room had two switches. Beyond is the !-block on the left side of the room, before is the right !-block. Meaning that the blocks had to be hit in this order: Left, left, left, right, right.

North-west room, 1st floor
"Four stones, twin stones... Master of Shadow and Dark... Two are one, one is two..." There were four blocks here, two stone, two unbreakable metal. The metal one is broken by breaking the stone blocks in the room directly above this one.

North-east room, 1st floor
"All you see isn't all there be... Stones Have Power of Stars... Touch it to pass through it..." It's an empty room. You can pass through the wall, revealing a room with a switch. Hitting the switch makes a chest appear in the first room.

South-east room, 1st floor
"The unseen mey yet be felt... So That We, the Great Ones... Be it here? Be it there?" There is an invisible object in the middle of the room, which Mario can't walk through. Flurrie can blow it away to reveal another !-Block.

South-west room, 2nd floor
"Let fall the weakest... And That the Skies Lie... Then build to the strongest..." One of each member of the Bones Family is in the room. You beat them in the order: Dull Bones, Red Bones, Dry Bones, Dark Bones.

North-west room, 2nd floor
"Four stones, twin stones... Can Live Again by the Stone... Two are one, one is two..." There were four blocks here, two stone, two unbreakable metal. The metal one is broken by breaking the stone blocks in the room directly underneath this one.

North-east room, 2nd floor
"Straight on, straight onward... We Know the Stars Spurn Us... Destroy all in your path..." Another empty room. The part of the wall directly in front of the door can be blown up by Bobbery, revealing another room.

South-east room, 2nd floor
"The shy one hides his shape... But the Stars Bring Balance. The shy one hides his face..." The room appears empty, but using Vivian to hide in the shadow makes a !-block appear.