From a tower with the largest clock on Earth to a mind-bogglingly tall building that holds 7 world records, this video presents a 3D comparison of the tallest skyscrapers on the planet. It features ...

There are some truly impressive infrastructure projects across the world that have been completed in the last two decades.

Though the highest point in Nevada -- Boundary Peak -- towers 13,147 feet above the remote wilderness of Southern Nevada, the tallest buildings are concentrated in the Silver State's population hub: ...