{"first_seen":"2026-09-15T01:21:53Z","headline":"In 1990, mining stopped at a 55-metre-deep Swedish limestone quarry; a year later...","kind":"front-page-headline","rank":1,"source":"timesofindia","url":"https://timesofindia.indiatimes.com/world/rest-of-world/in-1990-mining-stopped-at-a-55-metre-deep-swedish-limestone-quarry-a-year-later-an-opera-singer-discovered-its-remarkable-natural-sound-and-it-became-dalhalla-now-drawing-100000-visitors-each-summer/articleshow/134246996.cms","v":1}