The Burj Khalifa was also designed with sustainability in mind. It collects an impressive 15 million gallons of water ...

However, this is only one of the many world records Dubai’s Burj Khalifa holds. The monumental skyscraper is also the tallest structure ever built (surpassing the 2,121-foot Warsaw Radio Mast ...

Burj Dubai was already the world’s tallest building and tallest free-standing ... of Burj Dubai surpassing the height of the KVLY-TV mast is that it demonstrates the pioneering achievement ...

It held its distinction as the tallest building in the world for nearly 40 years ... originally intended as a mooring mast for dirigibles, but soon converted to accommodate radio (and later ...