Seattle Oddities &Amp; Curiosities Expo 2025. For two days at the seattle convention center, oddity connoisseurs and. Curiosities expo showcases hand selected vendors, dealers, artists and small businesses with all things weird.

Freaky collectors unite—seattle oddities & curiosities expo is here to satisfy all your creepy, crawly needs. The oddities & curiosities expo will be at the seattle convention center all day on halloween saturday.