Location from Pokémon Black & White by Nintendo / Game Freak
Team Plasma's hidden fortress — built underground, erupted through the Pokémon League during the climax, and containing the room where N was raised in perfect isolation.
N's Castle is the physical embodiment of Ghetsis's plan — a palace built for a puppet king, hidden underground until the moment of triumph. When N summons his legendary dragon at the Pokémon League, the castle erupts from the ground, surrounding and overwhelming the League building. It's the most dramatic set piece in Pokémon history. But the castle's most devastating room isn't the throne room or the battle chamber. It's N's childhood room — a small, toy-filled space where a child was raised in total isolation, surrounded only by abused Pokémon. The train set. The basketball. The scratched walls. It's the room where Ghetsis built a weapon out of a boy, and walking through it changes how you understand everything that came before.
A massive stone castle that erupted from beneath the Pokémon League, its towers dwarfing the League building. Dark stone, Plasma insignias, grand halls built for a king who was really a prisoner. Deep inside, N's room: a small space filled with a train set, a basketball hoop, and children's toys. A child's room inside a tyrant's fortress.
Also known as: N's Castle, Team Plasma Castle