The Mega-Cities Project is a worldwide non-profit organization dedicated to shortening the lag time between ideas and implementation by sharing innovative solutions to the problems cities face in common.
Header photo (Democratization and Decentralization) from Catalytic Communities
What is a mega-city?
A mega-city has a population of 10 million or more.
According to the “Report on The World’s Cities” (2016) by the Economic and Social Affairs Office of the United Nations, there are currently 31 mega-cities, but definitions of cities and metropolitan areas are inconsistent across countries and sources.

We work in 23 of the largest cities in the world:

Latest News
Celebrating Favelas: International Encontro in Rio, March 17–18
Bringing together international & local policymakers, architects, academics & [...]
REMEMBERING SHABBIR CHEEMA – Part of the Mega-Cities Project DNA
Shabbir was an integral part of the MCP, from its conception until his passing late last year. He was among the Founding Members of the Global Advisory Board and actively participated in many of [...]
UPCOMING Int’l Mtg on Favelas in Rio Nov 3-5
I'm presenting at the Opening Ceremony, Guanabara Palace on changes in lived reality and public policy from dictatorship to democracy (1968-present).
Fast-Tracking Urban Innovations
Fast-Tracking Urban Innovations What if the best ideas for cities didn’t take decades to scale? In this new talk, I share how we can accelerate the spread of urban solutions—from grassroots innovations to global [...]



