A deep-sea expedition off the coast of Chile has uncovered a treasure trove of scientific wonders, including more than 100 previously unknown marine species and a handful of never-before-seen underwater mountains — the largest of which is around four times the size of the world's tallest building.  Incredible photos and video footage of the underwater landscape also showcase a menagerie of deep-sea weirdos, including intricate sponges, spiraling corals, a beady-eye lobster, a bizarre stack