How Are Lucky Pennies Damaging Northern Ireland’s Giant’s Causeway?

Northern Ireland’s Giant’s Causeway, a UNESCO World Heritage Site formed by ancient lava flows, is under threat—not from nature, but from tourists wedging coins between its basalt columns for luck or love.

The coins corrode, expand, and stain the rocks, prompting conservationists to launch a $40,000 restoration project to remove them.

Officials are now urging visitors to stop the tradition and help preserve one of the world’s most iconic natural wonders.

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