Workers in the South Siberian town of Ulan-Ude have accidentally turned the town into a giant ice rink.
They were trying to build an ordinary ice rink – but accidentally broke one of the barriers while filling it with water.
Due to the extreme cold, the flowing water froze almost instantly – still, not before it had swept away the local Christmas tree and destroyed near-by ice sculptures.
Half of the town's centre has been turned into something resembling an Arctic landscape covered in pack ice.
Local authorities even had to block a number of central roads that became too slippery to drive on.
It will take workers with heavy machines another couple of days to remove the ice.
The damages have not yet been calculated. The ice city cost Ulan-Ude about $100,000.