Tallest Buildings &challenges
Burj Khalifa (800mts) Is the world's tallest skyscraper has been, its located in Dubai, United Arab Emirates. is a mighty 828 meters tall and has 163 floors is one of world most famous buildings.
Shangai Tower (623mts) This skyscarper is almos 200 meters shorter than Burj Khalifa in Dubai. In addition Shangai Tower will be home to the world's fastest elevators with the speed of 18 meters per second.
Makka Clock Royal Tower (600mts) This building is special for have a clock on the top of the building, the clock face is to large that the clock can be seen from 25 kilometers away.