With podcasts continuing to grow in popularity, we've compiled a guide to the best ones focusing on architecture and design, including one on "invisible" design and one on architectural failure.

Scratching the Surface 
Hosted by Jarrett Fuller, Scratching the Surface investigates the overlap between design criticism and practice. The extensive database of interviews features designers, writers, critics and educators including Oliver Wainwright, Alexandra Lange and OMA partner Reinier de Graaf.
scratchingthesurface.fm

Failed Architecture 
A combination of personal stories, research and reflection, the Failed Architecture podcast seeks to explore the meaning of architecture in contemporary society. The discussions surround unconventional narratives, ranging from the architecture of data centres to the influence of video games on our urban experience. failedarchitecture.com

Time Sensitive 
Released weekly, Time Sensitive has hour-long interviews with creative people that are considered to be leaders in their field. In the most recent episode, architect Bjarke Ingels discusses his tortuous path to success, his practice BIG's latest ventures and the time he spent working at OMA.
timesensitive.fm

Scaffold
Scaffold offers an in-depth look into the minds of different architects and designers, uncovering details about their work that are often overlooked. Hosted by Matthew Blunderfield, the long-form interviews are released on a fortnightly basis and include nam...