Paris prepares to rid its streets of cars for one day

City links: Car-free Paris, skyscrapers in a Mumbai slum, floating food forests in New York and Nairobi's smart bus system feature in this week's best city stories

The best city stories from around the web this week see Paris gearing up to get rid of cars (for one day only), vacant homes spreading across Tokyo's satellite cities, a floating food forest in New York and a skycraper made of shipping containers in Mumbai's Dharavi slum.

We'd love to hear your responses to these stories, and any others you've read recently, both on Guardian Cities and elsewhere. Just share your thoughts in the comments below.