For the sake of bringing this to different cities and regions, maybe you could do the same thing but with a "Memory Mobile (MM)" that travels around the country like the Oscar Meyer wiener truck.
To motivate visitors, you could offer one "Willy-Wonka" ticket each year, that gets a huge cash price or something cool. Tickets are handed out upon visiting the MM, and at the end of the year, ticket number is announced. Hold on to your ticket kids!