Danish Rubjerg lighthouse moved inland on skates - BBC News
For 120 years, it was perched on a Danish sand dune but coastal erosion threatened its future.
Now the 720-tonne structure has been saved, in an operation to lift it up and move it 70m (230ft) inland "like skates on rails".
Within hours, the lighthouse was transported to its new position.
Local builder Kjeld Petersen said the move would be over by mid-afternoon.
"We could not go faster than 12m an hour because they needed to calibrate the hydraulics. It's in sand and you need to ensure it runs well on the two rails," explained Mette Ring, from the local authority.
The engineers had assumed the lighthouse weighed up to 1,000 tonnes but discovered as they lifted it on Tuesday that it was a mere 720 tonnes and therefore a little easier to move.
Why it was moved
Rubjerg Knude is a popular tourist site, attracting some 250,000 people a year to the sand dunes of the island of North Jutland.
"It's in the middle of a gigantic sand dune and you can see it at night. It's windy and rough and you can really feel the elements here," said Ms Ring.