Wind Cave National Park, Black Hills, South Dakota (© Blaine Harrington III/Corbis)

【January 3 2014】Wind Cave, a national park in the South Dakota Black Hills, is one of the longest charted caves in the world. It also holds about 95 percent of the world's known deposits of boxwork – that strange calcite formation that looks a little like webbing or the lattice of a honeycomb. Exactly 111 years ago today, Teddy Roosevelt signed the bill to make Wind Cave the first cave in the world to be made a national park. Given the "hidden" aspect of the cave, it's perhaps surprising that Wind Cave was just the seventh national park established in the United States.Explore breathtaking Gallery from the HuluTrip homepage over the past 5 years..