3 notable sites ranked among the world's top 100
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An apparition site where 15 witnesses reported seeing the Virgin Mary, St. Joseph, and St. John the Evangelist in 1879. Receives 1.5M+ pilgrims annually.
Catholic apparition site, 1.5M+ annual visitors.
A prehistoric passage tomb older than Stonehenge and the pyramids. A narrow slot allows sunlight to illuminate the inner chamber only on the winter solstice.
UNESCO World Heritage, older than pyramids, solstice alignment.
A spectacular group of medieval buildings on a limestone hilltop, including a round tower, Romanesque chapel, Gothic cathedral, and castle.
Ireland's most spectacular medieval complex.
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