Between the two world wars, Vienna undertook one of the most ambitious public housing programmes ever. That effort is still credited with maintaining affordability a century later.
He's pursuing a number of projects to combat poverty and improve the city's sustainability.
The Legacies of British Slave-Ownership project is mapping every British address linked to a slave-owner.
Figures of the slave trade are honored in public spaces throughout Britain's cities, and opposition has rarely found footing in mainstream politics.