The Burj Khalifa is located in Dubai and is currently the tallest structure in the world at 2,723ft. Construction began on September 21st 2004 and it officially opened on January 4th 2010.. These amazingly detailed DIY models start as 4" square steel sheets and finish as amazing 3D models. Use easy to follow instructions to pop out the pieces, bend the tabs, and connect them at the attachment points. Build your collection today!