Ammon News - On this day in history, January 4, 2010, Burj Khalifa, the world's tallest building, officially opened in Dubai, United Arab Emirates.

Burj Khalifa, mixed-use skyscraper in Dubai, United Arab Emirates, that is the world’s tallest building, according to all three of the main criteria by which such buildings are judged (see Researcher’s Note: Heights of Buildings). Burj Khalifa (“Khalifa Tower”), known during construction as Burj Dubai, was officially named to honor the leader of the neighbouring emirate of Abu Dhabi, Sheikh Khalifa ibn Zayed Al Nahyan. Although the tower was formally opened on January 4, 2010, the entirety of the interior was not complete at that time.

Source: Britannica