The ship above the Bladerunner building looks like the mother ship from Close Encounters, but actually... It is a flying video screen mounted on a blimp/dirigible type craft that flew over the city displaying advertising in Bladerunner.
The original model was mounted over the center of the bar at The State Bar in Dallas for years. No idea how the bar came to possess it or where it is today. But that..... is why in the world I recognized it.
Mary Poppins flying in with her umbrella, titanic, shutter Island, Universal studios globe, Seattle's space needles, Peter pans big ben, the far out city in Tomorrowland honestly i feel like almost everything in it has some kind of underlying reference. I also feel like it slightly changes pretty regularly either that or I just keep noticing new things.