Daniel Brown/Business Insider
Homelessness is on the rise in the city, up 39% from last year. And even more are opting to live in the city's streets, parks, and alleys than shelters - nearly 4,000 as of July, the most since 2005.
There's a vast diversity to the people living without secure housing, and the various situations they find themselves in.
In central Brooklyn, a flashpoint of gentrification in the city, we met Moustafa, a 48-year-old mechanic who lost his shop and his home three years ago.
Moustafa now lives nearby in a community of about a dozen homeless mechanics who live out of their vehicles and try to get work when they can. He invited us to spend the day and night with him to get a glimpse into what it's really like to be homeless in New York.
Here's what we saw: