Many of the best roller coasters are billed as "death-defying," but Royal College of Art PhD student Julijonas Urbonas has created one that can only be described as "death-embracing." It's specifically intended to kill you.
There's no secret to what kind of ride you'd expect on the Euthanasia Coaster: it's guaranteed to be more extreme than any other coaster you'll ever ride, largely because by the end of it, your brain will have been completely starved of oxygen and you'll be dead. I'll just let the designer explain:
"Euthanasia Coaster" is a hypothetic euthanasia machine in the form of a roller coaster, engineered to humanely — with elegance and euphoria — take the life of a human being. Riding the coaster's track, the rider is subjected to a series of intensive motion elements that induce various unique experiences: from euphoria to thrill, and from tunnel vision to loss of consciousness, and, eventually, death. Thanks to the marriage of the advanced cross-disciplinary research in space medicine, mechanical engineering, material technologies and, of course, gravity, the fatal journey is made pleasing, elegant and meaningful.
Needless to say, it's spectacularly unlikely that this coaster will ever be built. So in the meantime, you'll just have to be satisfied with other, slightly less lethal forms of entertainment.