An archaeologist says a rock used to mark a parking lot at a church in Sweden is actually a 1,000-year-old runestone.

Stockholm County Museum runic expert Lars Andersson said a rock used to help mark the lot's boundaries is thought to date back to the Viking Age in Sweden, The Local said Friday.

Andersson said in a museum statement the discovery of runic inscriptions on the rock thanks to rainy weather was akin to a "religious experience."