Yosemite is one of the most visited national parks in the country. Be careful if you’re going to the Ahwahnee Hotel, which is reportedly haunted by former operator Mary Curry Tresidder. Guests and staff say they have seen Mary floating up and down the halls, making sure everything is in order. There is also the “Crying Boy” from 1857. The legend is that he had drowned in Grouse Lake several years earlier and now calls out to people in hopes of alluring them into the lake. And watch out when you visit any of the park’s stunning waterfalls. The Miwok Indians believe they are haunted by an evil wind called Po-ho-no, which draws people to the edge and pushes them off.