Me personally, I don't believe in the Chupacabra, Mothman, Dracula, Headless Horseman, Jersey Devil, Thunderbird, or several others. And I don't think I believe in inter-dimensional travel by normal flesh-and-blood entities like us. At least not back and forth between them. Maybe the places we call Heaven and hell are other dimensions, but death is the ticket to get there, and we leave the flesh-and-blood behind when we make that jump.
I do firmly and steadfastly believe in bigfoot. Nessy and Champ (Lake Champlain), maybe. Loup Garou or wolfman or Nalusa Falaya and other similar creatures, maybe. (But if they exist, I think they are much different than the legends about them.) Ghosts, spirits, demons and such, absolutely. Even Jesus spoke of them.
UFO's, absolutely. To be classified as a UFO, it only had to be Unidentified. Just because somebody couldn't identify it at the time doesn't mean it was unknown. BUT, I also worked for NASA, the U.S. Army Missile Command and the Government for a number of years, and spent several years at White Sands Missile Range in New Mexico and other installations out in the boonies at various places around the country. And I worked on aircraft that the Gov't still hasn't acknowledged the existence of. And I HAVE seen things that flew with unconventional technology that I was not privy to and did not understand. I'm NOT saying that it was alien technology, just technology to which I wasn't privy.
But I sure heard stories........