<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54caebc50dfe6_-_burj-01-0512-de.jpg>
<http://www.popularmechanics.com/technology/design/a7807/taller-how-future-skyscrapers-will-beat-the-burj-khalifa-8893983/>