Curling takes the world by storm every four years, but many fans don't know much about the stones used.

Every stone thrown at the Olympic curling tournaments comes from the same place — the remote island of Ailsa Craig, off the Scottish coast.

Every single curling stone in the Winter Olympics is crafted from a special granite found only on Ailsa Craig, a small ...

The rocks used in the Olympic sport of curling come from one island in Scotland and one quarry in Wales. What makes them so ...