UNStudio bisects St Petersburg office with zigzagging atrium

Dutch architecture firm UNStudio has revealed its design for an office in St Petersburg, Russia, which will contain an atrium that rises diagonally through the building.
UNStudio designed the large office building on the St Petersburg waterfront overlooking the Gulf of Finland for Czech software company JetBrains.
Top: UNStudio has designed an office for JetBrains. Above: the design will join two pre-existing buildings
The office will be built alongside JetBrains'two existing buildings and