has developed its own system for classifying tall buildings, stating that the Burj Khalifa (828 m.) is the world’s tallest building right now. Read on for the 25 tallest buildings in the world ...
has developed its own system for classifying tall buildings, stating that the Burj Khalifa (828 m.) is the world’s tallest building right now. Read on for the 25 tallest buildings in the world ...