Did an entire floating city cruise around the skies over America in the 20th century? It hardly seems likely, as it's patently absurd and the plot of BioShock Infinite and all, but publisher 2K Games has put out a new video today exploring just that subject, resembling a documentary from the 1980s. It's perhaps not definitive proof, but when has television ever lied to us?

Join Alistair Bloom in this forgotten episode of 'Truth From Legend', posing the question: "Columbia: A Modern Day Icarus?" The trailer's another interesting anachronism for a game that includes a brief scene set in the neon streets of a city in the 1980s. Will something come of it all or is it window-dressing?

Developed by Irrational Games, BioShock Infinite hits PC, Xbox 360 and PS3 on March 26.