Humanity has become obsessed with breaking its limits, creating new records only to break them again and again. In fact, our cities’ skylines have always been defined by those in power during every period in history. At one point churches left their mark, followed by public institutions and in the last few decades, it's commercial skyscrapers that continue to stretch taller and taller. 

The Council on Tall Buildings and Urban Habitat (CTBUH) 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 today.