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These wonders range from iconic national parks to lesser-known historic buildings, but they are all outstanding examples of the natural history and societal development that make America unique.

Nature can surprise you. See what natural wonders you can see in different corners of the world. Is this the most awe-inspiring thing you've seen in the world? Read also: 30 Beautiful Places Worth ...

Waitomo Caves in New Zealand is one of the most breathtaking natural wonders! Photo: iStock Some places on Earth are so breathtaking that they feel more like scenes from a fantasy film than actual ...

Today, 63 designated national parks in the United States draw millions of visitors a year to witness jaw-dropping natural wonders and unforgettable terrains. To determine the best U.S. national ...