Before air conditioning, Floridians relied on design techniques like these to stay cool. Its dubious honor as the hottest, most humid state made Florida pivotal in the history of how people cooled ...

cool designs, or simply gorgeous handwriting. We’ve chosen the 9 famous people with the coolest signatures throughout history. Produced by Alex Kuzoian. Original reporting by Megan Willett and ...

An early form of ice house was built in 400 BC. Located in the Dasht-e Lut desert in Persia, this huge conical stone structure remained cool inside despite the arid weather outside. It was called ...