The stereographic projection technique was used to convert aerial panoramas of cities including Paris, Sydney, Shanghai and Chicago into mini-globes
Paris, France
The 360-degree aerial panoramic photos were taken for AirPano, a Russian not-for-profit project created by a team of enthusiasts.
Sydney, Australia
The original photograph was usually taken from a helicopter, although sometimes the team used a plane, hot air balloon or drone.
Miami, US
The 360-degree panoramas were manipulated in PhotoShop using a technique called stereographic projection, creating a circular image.
San Francisco, US
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St Petersburg, Russia
Singapore
Sao Paolo, Brazil
Shanghai, China
Valencia, Spain
Abu Dhabi, UAE
Chicago, US
Hong Kong, China
Prague, Czech Republic
Vienna, Austria
Rome, Italy
Berlin, Germany
This feature originally appeared in The Guardian.
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