If you are looking for a "piece" related to the Titanic, it likely refers to either a famous artifact from the wreck or a specific building set count for a model. 1. The "Big Piece" (Historical Artifact)

It is currently the centerpiece of Titanic: The Artifact Exhibition at the Luxor Hotel in Las Vegas . 2. LEGO and Model Building Sets

The most famous literal "piece" of the Titanic is known as .