The entire Swedish city of Kiruna is being relocated to prevent it from collapsing into underground iron mines

Located above the Arctic Circle, the Swedish city of Kiruna is facing a rather unique obstacle; it is slowly sinking into the ground. Thanks to a local iron mine owned by Luossavaara-Kiirunavaara AB (LKAB), it is projected that most of the structures in the city will collapse into the expanding iron mines below it by 2050, sciencealert.com reports.