Tents are pitched illegally on a sidewalk in Seattle in January. The number of people sleeping outside in the city shot up by 20 percent in just the past year. David Ryder/Reuters /Landov hide caption

itoggle caption David Ryder/Reuters /Landov

The city of Hollywood, Fla., bought the Homeless Voice shelter from its owner, a longtime advocate for the homeless who agreed to stay away from the city for the next 30 years. Greg Allen hide caption

itoggle caption Greg Allen

Tony Simmons leads a group of Johns Hopkins University students on a "justice walk" in downtown Baltimore, during which they learn about public policy, providing services, and the connections between income inequality and health. Gabriella Demczuk for NPR hide caption

itoggle caption Gabriella Demczuk for NPR

Erika Kalberer (left) and her mother, Kris. Their family has been living in their car. Kris tells her daughter, "I don't think sometimes you know how strong you are." StoryCorps hide caption

itoggle caption StoryCorps