1: 1. The Twelve Apostles, Australia - Iconic limestone stacks along the Great Ocean Road.
2: 2. Ayers Rock (Uluru), Australia - Sacred sandstone monolith in the Outback.
3: 3. Giants Causeway, Northern Ireland - Basalt columns on the coast of Antrim.
4: 4. Stonehenge, England - Ancient circle of standing stones in Wiltshire.
5: 5. Moeraki Boulders, New Zealand - Massive spherical rocks on Koekohe Beach.
6: 6. Bryce Canyon, USA - Spectacular hoodoos formed by erosion in Utah.
7: 7. Ha Long Bay, Vietnam - Thousands of limestone karsts in the Gulf of Tonkin.
8: 8. Arches National Park, USA - Natural stone arches in Utah's red rock country.
9: 9. Mount Roraima, Venezuela - Tabletop mountain with sheer cliffs and cascading waterfalls.
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