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Picturesque UNESCO World Heritage Sites in the US

The famous Grand Canyon in Arizona was recognized as a UNESCO World Heritage Site in 1979 and is known for its breathtaking vistas and geological significance. Carved out by the Colorado River, The ...
Travel + Leisure on MSN

The Tallest Underground Waterfall You Can Visit in the U.S. Is Hidden Inside This Tennessee Mountain

Ruby Falls is an underground waterfall located over 1,000 feet beneath Lookout Mountain in East Tennessee. Travelers visit for the dramatic waterfall reveal, guided cave tours with stunning rock ...