How important are flora and fauna to a flourishing city? We investigate the merits of encouraging an urban insect population, the benefits of wildlife sanctuaries in city limits and we visit a turtle rehabilitation centre in a Dubai hotel.

Thomas Heatherwick on generosity in urban design and how to sustain a project’s momentum
37:51

Tall Stories 518: The past and present grow together at Chengdu’s West Village
05:56

How London’s South Bank has supported culture for 75 years
27:18