From the pyramids to the Eiffel Tower, our creations have scaled dramatically over the centuries. Which have been the world's tallest structures in history?
In just a half-century, Dubai has gone from a fishing village to a global real estate hub. Today's video and graphic track the city's stunning transformation.
From multi-billion dollar theme parks in Dubai to 48-year long canal projects to divert major rivers in China - these are the world's largest megaprojects.
The ranking of the world's tallest buildings has shifted dramatically since the start of the 20th century. See the evolution of this list over nearly 100...