New scientific testing reveals that the marble slab covering Emperor Otto I’s tomb in Magdeburg Cathedral did not come from Greece.

North Carolina Granite Corp. ceased operations during the summer, but the fabled local quarry will live on through the efforts of Mount Airy Museum of Regional History.

If you’re looking to strike gold — silver or bronze, too — look to Ailsa Craig. This uninhabited isle 10 miles off the coast of southwest Scotland is the source of the ...