关键词:New York. America’s largest city. Here is how a mostly unseen network of infrastructure systems works in unison to keep the city breathing. S2 E1 - World Trade Center S2 E2 - Pigeons S2 E3 - Empire State Building S2 E4 - Ports S2 E5 - Skyscrapers S2 E6 - Food S2 E7 - FDNY S2 E8 - Grand Central Terminal S2 E9 - Roads S2 E10 - Recycling Narrator: Joe Szymanski Studio: Cheddar