Poseidome Colosseum
Foundation: Colosseum
Founder: King Neptune
Employment: SpongeBob SquarePants (for a brief moment)
First appearance: "Neptune's Spatula"
Latest appearance: Nicktoons MLB
List of places

The Poseidome Colosseum is the Colosseum of Atlantis.


It is a large concrete, Greek Building, with large concrete cylinders at the main entrance. inside there is a modern arena, with Show lights, a ring, and many rows of viewing seats.


King Neptune and SpongeBob SquarePants had a Cooking Contest in this building in the episode "Neptune's Spatula." It also appears in Battle for Bikini Bottom, where Robo-Sandy is the Boss. It is one of the arenas in Nicktoons MLB.


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