But if it's invisible, what's the point? South Korea is getting the world's first invisible skyscraper and the third-highest observation deck in the world, according to a press release. Architects leading the project on the Tower Infinity were granted a permit to get started on the 1,476-foot-tall building. The crystalized construction will include a water park, movie theaters, and restaurants. How does it appear invisible? Basically, a LED façade system and serious cameras will create the outlines of the tower. Cool stuff.