What's the Point of the World's Fair?

The three ships end up up the saint lawrence seaway. They arrive at the, at the fair. The fair has constructed a big pond let the sen i mean, this is fantastic, crazy, like a kind of proto artdeco marble city. It's on the side of lincoln park, an in chicago now,. which at the time was kind of just a swampy bog and it was just transformed into maybe the ultimate example of a world's fair campus.