2.Pulkovo International Airport
![](/uploads/default/travel/459455e29f90a54fc75256c256526434.jpg)
Sponsored Links:
Designed by London-based architecture firm Grimshaw Architects, Pulkovo International Airport in St. Petersburg, Russia, was completed in 2014 and is expected to welcome around 12 million passengers each year.
The building features a large flat roof that can withstand heavy snowfall.