This week, to celebrate our 40th episode, we’re talking about The B1M’s latest video “How to Finish the World’s Tallest Skyscraper” – that can only mean one thing… The Jeddah Tower, Saudi Arabia. Big episode. Big discussion. Big bants. Big building.

Later in the episode, we look at New York’s tree-topped 64 University Place (KPF), London’s new rolling bridge (Thomas Randall-Page), and Utrecht’s crazy new Civic Centre (Heatherwick Studio). Oh, and we quickly go over the latest update on Penn Station plans (awkward).