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How Did They Build That?
S3, EP3 "303"Engineers grapple with an apartment building, ripped apart by a man-made canyon; the Gateway Arch takes shape in St. Louis; an unpromising plot in Copenhagen, Denmark, is transformed by a gleaming new triangular office.
How Did They Build That?
S4, EP8 "Facelifts & Scaffolds"A museum building bends 1,100-glass tubes to form a facade and tunnels below the water table; a vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.
How Did They Build That?
S5, EP8 "Wings & Waterlines"Lord Foster's five-winged steel towers cool Abu Dhabi's national museum naturally. Robots 3D-print a steel bridge in Amsterdam & a concrete tower in Switzerland. And in Sydney, engineers pump out the harbour to build a fish market.
How Did They Build That?
S5, EP9 "Space Homes & Glass Waves"NASA's 3D-printed Mars habitat rehearses human life on the red planet. Seoul's historic city hall gains a 13-story glass wave. And in Dallas, 68,000 square feet of concrete galleries balance on legs that want to splay open under.
How Did They Build That?
S4, EP7 " Summit & Submerge"Building an eco-friendly visitor center in the permafrost on Colorado's Pikes Peak tests the team. A museum is constructed in a disused dry dock that's in danger of collapse.
How Did They Build That?
S3, EP9 "Curved & Cables"A new performance center with a tent-like glass-and-steel lobby tests engineers in Kansas City; two twisting apartment towers make heads spin in Ontario.
Air Disasters
S18, EP4 "Dead Tired"Investigating the 2009 crash of Colgan Air Flight 3407; the plane stalls at low altitude and dives into a residential area near Buffalo, N.Y.
Air Disasters
S24, EP10 "Deadly Directive"When Ethiopian Airlines Flight 302 crashes shortly after takeoff, the catastrophe leads to the grounding of the entire Boeing 737 MAX 8 fleet.
