Each of these skyscrapers deserves their place in the annals of engineering wonders.
Italian architects joined with an interdisciplinary team in to design intensive care units capable of working to the scale of the COVID-19 coronavirus.
2000-year-old Roman constructions have shown incredible durability that researchers are still trying to replicate today.
Watch a YouTuber test ancient Egyptian tools and guides used to build the Pyramids.
The rare blueprints were found in a trash can by chance.