EDITOR’S NOTE: Sign up for Unlocking the World, CNN Travel’s weekly newsletter. Get the latest news in aviation, food and drink, where to stay and other travel developments. It’s the airplane seat ...

It's the airplane seat design that launched a thousand memes, kickstarted a media storm and became a byword for innovation in aviation, for better or for worse. And now the double-level airplane seat ...

Designer Alejandro Núñez Vicente remains a fervent believer that two-level seating is the future of flying. He's spent his twenties - all five years of them so far - perfecting his vision for economy ...

But while the economy class concept imagines three seats on the top and bottom rows, this new concept, called “elevated class,” envisages just one seat on the bottom row, and two on the top in a couch ...