Who belongs in a city? | OluTimehin Adegbeye

What it feels like to see Earth from space | Benjamin Grant

Would you live in a floating city in the sky? (with English subtitles) | Tomás Saraceno

A smog vacuum cleaner and other magical city designs | Daan Roosegaarde

How young people join violent extremist groups -- and how to stop them | Erin Marie Saltman

Dare to refuse the origin myths that claim who you are | Chetan Bhatt

How your pictures can help reclaim lost history | Chance Coughenour

How the US government spies on people who protest -- including you | Jennifer Granick

Can a robot pass a university entrance exam? | Noriko Arai

Why we need to end the era of orphanages | Tara Winkler

Fun, fierce and fantastical African art | Wanuri Kahiu

When workers own companies, the economy is more resilient | Niki Okuk

"The Sacred Art of the Ori" | Laolu Senbanjo

What the sugar coating on your cells is trying to tell you | Carolyn Bertozzi

How to build a company where the best ideas win | Ray Dalio