What's the Guinness record holder for the largest dome igloo made of snow? How many blocks of snow/ice did it take?

Guinness World Records [has just] confirmed that the Iglu-Dorf building crew (Switzerland), supported by Volvo, has built the Largest dome igloo (snow) ever in Zermatt, Switzerland, measuring an impressive 10.5 m tall, with a vast internal diameter of 12.9 m (42 ft 4 in).

A crew of 18 people constructed the giant ice structure in just three weeks, using approximately 1,400 blocks of snow.