Barcelona wants to build 500 superblocks. Here's what it learned from the first ones.

Poor neighborhoods in the United States lack quality play spaces for children, also known as play deserts. An organization is enabling communities across the nation to build their own playground.

Civic leaders in the U.S. struggle to effectively help their distressed neighborhoods. East Lake, Atlanta, created a replicable model that mixes residents of differing socio-economic status, and focuses on education and health in the area.

In Memphis, a creative blight-reduction initiative called 25 Square Blocks broke down the city into blocks. Inspectors were able to quickly identify all the violations and fix them, using the same amount of funding, but less time, as the old call-and-respond model.

Native American student graduation rates are much lower than that of any other demographic. The Red Cloud school teaches students on a reservation in South Dakota about the Lakota history to empower the kids and encourage resilience.

Despite overwhelming evidence that play is vital for children’s physical, emotional and cognitive development, in recent decades, due to many factors, children’s outdoor play opportunities have declined markedly. For 15 years, KaBOOM! has been leading playground construction around the country, mostly in neighborhoods where at least 70 percent of children qualify for the federal government’s free and reduced-cost lunch program.

When adults are asked what values they think youth sports actually reinforce most, they say competitiveness and the importance of winning. The Positive Coaching Alliance provides teaching tools that help coaches redefine the idea of “winning” from something that is reflected on a scoreboard to something that is reflected in a child’s character.

A Dallas urban neighborhood was dilapidated with abandoned storefronts and offered no vitality for pedestrians. A group of artists and community members created Build a Better Block, in which local artisans and small businesses took over a vacant block and transformed it for a limited time to encourage the ingredients for more permanent urban renewal.

Alleys in Seattle were once places of illicit, illegal, and unsanitary activity. The International Sustainability Institute in Seattle began organizing music and art events to bring in people, which, in turn, cleaned-up the crime and garbage. As an urban development strategy, adjacent vacant storefronts re-opened for business and beautification could be seen in new gardens.

The Oak Cliff neighborhood in Dallas suffered from recession-closed businesses and crime. Then community members used placemaking, in which people shaped their own environment to improve the quality of life, and the concept of Build a Better Block, which was a pop-up event showcasing art, food, music, and local faire. The idea gives citizens a fresh look at the possibilities through which to transform the space in which they live, and it has attracted attention across the country and around the world.

Cities tend to be dangerous and difficult places to live for older residents. A private public partnership in New York is catering to seniors through small changes in the city such as para-transit options and seniors-only hours at public establishments.