World Oddities Expo is an expo-style gathering that brings together vendors, collectors, artists, and performers focused on curiosities, oddities, and vintage sideshow-style artifacts. It takes place at the Kalahari Resorts & Conventions in Round Rock, Texas, and features vendor halls, themed exhibits, and live presentations that highlight unusual cultural and natural-history objects. The event is notable for concentrating a wide range of oddity-focused merchandise and community expertise in a single convention setting.