Once upon a time (not so long ago), the Burj Khalifa was just concrete under construction - a very different sight from today ...

Old pictures of Burj Khalifa: How it looked in 2007 (Credit: Emaar) The Burj Khalifa as it looked in 2007 when it overtook Taipei 101 as the world’s tallest building (Credit: Emaar) Burj in 2007 ...

At 2,722 feet from base to tip, the Burj Khalifa is the tallest building in the world. When construction finished in 2010, it claimed the record from Taipei 101, a mixed-use building in Taipei ...

At 508 metres, Taipei 101 was long the World’s tallest skyscraper, before being dethroned by the Burj Khalifa in 2009. Designed by C.Y. Lee & Partners, this building was inspired by the shape of ...