The text snippets and lists provided mention several least visited countries in the world, including Nauru, Tuvalu, São Tomé & Príncipe, Djibouti, Dominica, Madagascar, Tonga, Kiribati, Marshall Islands, Niue, Montserrat, American Samoa, San Marino, Swaziland, Benin, and Togo. These countries offer unique landscapes and experiences, ranging from mountains to oceans, and have low numbers of annual visitors. Despite being considered "off the beaten path," these destinations have much to offer in terms of culture, wildlife, and natural beauty. The United Nations World Tourism Organization has compiled a list of the top 10 least visited countries, with Nauru being the least visited country with only 200 annual visitors. Some of these countries, such as Madagascar and Tonga, have small populations and underdeveloped tourism industries. Others, like San Marino and Swaziland, may be less visited due to their location and accessibility. Despite their low numbers of visitors, these countries can be fascinating and rewarding destinations for adventurous travelers.