Retrozeum is a Budapest-based online shop for collectors and enthusiasts of vintage, historical, and pop-culture items. Its broad catalog includes film memorabilia, comics, music, sports collectibles, paper ephemera, books, paintings, games, transport-related items, retro objects, and historical artifacts. The store also lists antiques, entertainment electronics, and memorabilia from Collart Gallery, with new arrivals and discounted items featured alongside its main categories.

Customers can browse and order through the website, create an account, save favorites, and choose Hungarian, English, or German as the display language, with prices available in forints or euros. Retrozeum also provides information about payment, delivery, and its terms and privacy practices. The site features auctions and invites visitors interested in selling items to get in touch, though specific selling terms are not provided. Customers can contact the business by email and follow its Facebook, TikTok, Instagram, and YouTube channels for updates and content. Retrozeum is operated by Rimóczy Kolos EV. at Hegedűs Gyula utca 1, 1137 Budapest. Visitors are advised to ask in advance about opening hours.