Alta, Norway
Sorrisniva Igloo Hotel
Rebuilt each January beside the Alta River, on the same site since 1999.
Sorrisniva raises a new snow hotel beside the Alta River every winter, carved by a team who begin work as soon as the ice is thick enough and finish shortly after the new year.
Suites are cut in relief each season around a theme that is not repeated, and an ice bar and chapel take up the public end of the building.
A year-round lodge stands on the same estate, so guests can take one cold night and the rest warm — which is how most of them use it.