summit), the Burj Khalifa has been the tallest structure since 2009. Since its top spot in manufacturing in the world, Taipei 101 replaced
the previous holder of that position.Construction of Burj Khalifa began in 2004, with the exterior completed five years later in 2009.
The primary structure is reinforced concrete and some of the structural steel for the building originated from the former East German
Parliament, the Palace of the Republic in East Berlin. The building was opened in 2010 as part of a new development called Downtown