North Korea's Ryugyong Hotel is tallest empty building, Know mysterious truth

North Korea’s Ryugyong Hotel is the world’s tallest unoccupied building, according to Guinness World Records. The 105-storey pyramid-shaped skyscraper is 330 metre high but it is unoccupied, completely empty being the most mysterious unfinished building by far. It's construction began in 1987 and took 25 years to be completed after being halted several times in between.