(CNN)From Denali to Mount Rainier to Mount Washington, the U.S. is full of majestic, towering peaks that have long challenged people to climb them. This story is not about those. This story is about humbler summits -- some of them aren't even hills -- that beckon hikers in largely flat, low-lying parts of the country. They have modest names like Charles Mound and Hoosier Hill, and you can climb some of them in your slippers without breaking a sweat. Why would you? Well, these summits are all notable for one thing: They're the highest points in their states. And a certain variety of mountaineer -- peak baggers, they're called -- will seek them out just for that reason.
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Some "peak baggers" try to summit the highest point in all 50 U.S. states
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In states like Delaware and Florida, the high points aren't even hills
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Expert: In many states, the actual high point "is less than a 10-minute walk from your car"
@placeholder is 20,320 feet high and requires weeks of planning to summit.