The phrase "museum piece" typically refers to an object or artifact that is considered historic or valuable enough to be displayed and preserved in a museum. There are several synonyms for this phrase, including antiquity, artifact, relic, heritage item, vintage, and antique. Each of these words effectively conveys the notion of an item that is old or valuable enough to be considered a piece of history. Some other related terms that could be used in place of "museum piece" include heirloom, collectible, treasure, masterpiece, and icon. Regardless of the specific terminology used, these words all evoke an image of an object that is significant and worth preserving for future generations to appreciate.