5. (b) inside it only You can't tell from this famous image from the 1922 documentary "Nanook of the North", but an igloo builder does all his work from inside the footprint of the structure.

Temperatures inside are chilly - between -2C and +2C ... They can also warm up in an outdoor whirlpool. There are three igloo villages in Switzerland, in Davos (2,500m above sea level ...

Igloo told "Good Morning America" in a statement ... manufacture month and the last two digits of the manufacture year inside the circle. The word "IGLOO" is also printed on the side of the ...