Taking the concept of "moving house" to new extremes

Another reader-contributed link (this from "Da Wife" . . . not my wife, just in case anyone is confused): an extreme case of moving:

Moving one household is a complicated ordeal that can take thousands of dollars and many weeks to organize. Try moving half a town.

The Arctic town of Kiruna, Sweden's northernmost municipality, is under threat as cracks caused by decades of iron ore mining slowly erode its foundations.

So two years ago the municipal council decided to move more than half of the town from the shadow of Kiirunavaara mountain, site of the world's largest underground mine.

This month it chose the new site for Kiruna's centre, at the base of Luossavaara mountain, about 4 km (2.5 miles) away.

The town's deputy mayor puts the cost of moving the buildings at about 30 billion Swedish crowns ($4.28 billion), not including rerouting the railway and roads.

The "good" news is that they're not having to do this overnight: the municipal government expects the move to take 40 to 50 years to complete.