KATO MINI DIORAMA CIRCUS is an event where small dioramas are built using KATO's MINI DIORAMA BASE and enjoyed by connecting the dioramas together at the venue. The event, which started in Japan, has already attracted more than 800 pieces, with N-gauge model trains running on the dioramas. Usually, the most enjoyable part of a diorama is making it, and the next opportunity to present it is even more exciting, but at the KATO MINI DIORAMA CIRCUS, the MINI DIORAMA BASE with KATO's UNITRACK takes it even further, allowing people who don't know each other to "snap" at each other's dioramas. Even dioramas made by people who don't know each other can be connected with a "snap".