Who says homes need to be built out of bricks and mortar? Or that blimps can’t be used for public transport? Architect Mitchell Joachim shares his remarkable concepts for creating earth-friendly next-gen urban human habitats.

Yes, it has free love, vegan food, Wi-Fi and a low carbon footprint. But it also has unchallenged assumptions, ramshackle housing and a questionable belief system, finds social media analyst Jamie Bartlett.

Here’s a huge list of TED speaker-recommended books, with all the diversity of titles and topics you might expect. No matter your mood, preference or occasion, we’ve got you covered.

From Hong Kong to Istanbul to New York, libraries are one of the defining elements of 21st-century demonstrations, says techno-sociologist Zeynep Tufekci, and they can help illuminate why people risk discomfort, arrest and danger to stand together.

Think newspapers’ obituary sections are just about dying? Think again. They’re celebrations of humanity — with lessons for us all, according to data analyst Lux Narayan.

Physicians Raj Panjabi and Seth Berkley are on a mission to ensure that every person in the world has access to decent medical care. In a conversation, they discuss the obstacles standing in their way and the bold ideas that could help overcome them.

The establishment of dozens of “healing forests” is part of South Korea’s surprising prescription to improve its citizens’ health and wellbeing. Journalist Florence Williams takes a walk in the woods to learn more about this intriguing approach to public health.