The Toad Shrine

The Toad Shrine is supposed area of interest within the fourth floor of Princess Peach's Castle. With not all copies having the fourth floor, and those that do not having the same room layout, it's hard to confirm the verasity of the Toad Shrine though some have claimed to spot it.

Existence
There are no references to the Toad Shrine within the base game, although some people have claimed to see it on their journeys up to the elusive fourth floor. It is usually apart of another room, situated in its own alcove, although some claim it is in its own room. One user claims that the shrine was surrounded by a pool of water that had water flowing into it, although noone else has said the same thing.

The Toad Shrine is often described as a large statue of a Toad, much higher definition than the Toad model used in game. It uses the same metallic texture as Metal Mario, and is set upon a stand with a plaque sharing its texture with the same one used in the Castle Courtyard fountain. A player has claimed to be able to read the plaque on the statue's stand, where it reads: "The Bringer of the Stars Above, the Mushroom Overlord"

Speculation
The removal of the Toad Shrine likely came with the removal of the fourth floor, however another possible reason for its removal could be due to it's religious connotations. Nintendo of America has affirmed how they're against religious messaging within their games, and while the Toad Shrine bares no resemblence to a singular religion it still could raise a red flag within their division.

Trivia

 * A metallic statue of Mario and a Goomba can be found within the Peach's Castle tech demo for the Nintendo Gamecube . It's possible that these concepts originated from the idea of the Toad Shrine.