Room-commanding pieces. Serious shelf required.
Statement sets run 50–75cm — large enough to anchor a room but still manageable on a dedicated display shelf or cabinet. You're looking at the Lion Knights' Castle, Hogwarts, the AT-AT, and Rivendell. These aren't set-and-forget builds; they're conversation starters that define the aesthetic of whatever space they occupy.
Before buying a statement piece, measure twice. These sets need a shelf at least 60–75cm wide with adequate depth — typically 40–50cm — and at least 60cm of vertical clearance. A dedicated display cabinet or a reinforced bookcase is ideal. Each set's detail page shows exact dimensions and shelf fit indicators for IKEA Kallax, Billy, Detolf, and Eket so you know before you build.