Cassie De Pecol has traveled to all 193 sovereign nations in addition to Taiwan, Kosovo, and Palestine. She completed her trip around the world in slightly over 18 months, breaking the record at the time. These are some of her top travel tips — from her favorite airlines to how to stay safe as a solo traveler. Loading Something is loading. Thanks for signing up! Access your favorite topics in a personalized feed while you’re on the go. download the app This as-told-to essay is based on conversations with 33-year-old Cassie De Pecol, a travel influencer who previously held the Guinness World Record for traveling to every country in the…