What the thing is
It is a biennial international cultural event for mayors of historical and cultural cities.
Where it came from
It launched in Nanjing on April 30, 2004, with 11 foreign cities including Barcelona, Florence, Kyoto, Paris, St. Petersburg, and Vienna, plus Chinese historical cities such as Beijing, Xi’an, and Pingyao.
What it gets right
It gets right the alignment of city leadership with heritage protection. Mayors — not curators or academics — are the named participants. It treats cities as agents, not exhibits.
What it gets wrong
It gets wrong the conflation of participation with influence. 276 mayors from 74 countries attended across eight editions, but the material shows no evidence of follow-up action, policy change, or measurable impact beyond the event itself.
Why it matters now
It matters now because city-led heritage diplomacy is gaining traction amid national retreats from multilateral cultural frameworks — and this is one of the few documented, sustained examples of it.
Is it worth your time
It is worth your time if you work in urban heritage policy, international cultural diplomacy, or UNESCO-aligned city networks — not as spectacle, but as a documented, repeatable model of mayoral-level cultural cooperation.





