There are certain countries Americans would not want to visit, but then there are countries that Americans are not allowed to visit. These include Cuba, North Korea, Somalia, Iran and Burma. These countries do not have good relations with America. Cuba would be the one country that might be coming off the list soon due to the change in relationship with the United States.
Many of these countries are not safe and the United States has been on bad terms with them for a long time. Some countries require Americans to get permission to visit those countries before they can come into the country. If they didn’t get permission, they either would not be allowed in or they would be arrested when they arrived.