That doesn’t mean Yellowstone is completely visitor-friendly, though. Close encounters with the geysers risk third-degree burns or even death, and there have been more than 20 related fatalities since 2000.

Some unfortunate (or in some cases misbehaving) visitors have also been the target of bison and bear attacks. The national park advises keeping a distance of 75 feet from these animals, and there are plenty of signs warning visitors to steer clear of wildlife and refrain from entering geothermal sites.

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Beware The HIDDEN DANGERS At These Popular American Attractions