Solar Egg is an egg-shaped sauna created by the artist duo Bigert & Bergström for Riksbyggen.

Beyond its function as a sauna, Solar Egg is essentially a public sculpture developed in collaboration with artist duo Bigert & Bergström.

[8] The egg shape seeks to symbolize rebirth and new opportunities at the start of Kiruna's urban transformation, a project that involves the relocation of the entire cities districts in response to ground subsidence caused by decades of iron ore minings.

[9] In Kiruna, Sweden, the entire community is being forced to move due to ground complications caused by a nearby ore mine.

[10] The Swedish artist duo Bigert & Bergström was commissioned by Riksbyggen to design commemorative social sculpture for the town after the residents voiced fears of losing community spirit after their relocation.