Spaceports and sky farms: Is this how we'll live in 100 years?

Looking out across the city and atop the skyscrapers before you are cows. Yes, you read that right. Farm animals contentedly grazing on high-rise urban farms litter the London skyline.

Elsewhere, off the coast of mainland England, against the backdrop of the stunning White Cliffs of Dover, an intricate pod structure forms part of a floating city.