Collector pieces refer to rare and valuable items that are sought after by enthusiasts. Synonyms for collector pieces include antiques, artifacts, curios, rarities, relics, souvenirs, treasures, and memorabilia. Antiques are objects that are more than 100 years old, while artifacts are objects created by human intervention, like pottery or sculptures. Curios are unusual items that are interesting or attractive, while rarities are things that are hard to come by. Relics are objects of historical interest, while souvenirs are items that are brought home as a reminder of a trip or experience. Treasures are valuable objects of great worth, and memorabilia are souvenirs associated with famous people or events.