With its crenelated walls and towers, San Marino perches on a mountaintop in northern Italy like some displaced relic of the Middle Ages. The world's oldest and smallest (23 square miles) ...

San Marino was envisioned as the exclusive domain of the well-to-do from its inception.

People used to go to San Marino to avoid taxes and collect stamps. Now, the micro-state surrounded by northern Italy is banking on a new way to attract visitors - vaccine tourism.

San Marino has given at least one dose to 27 percent of its population. In Italy, only 12 percent have gotten a jab.

San Marino is known for its beautiful views, traditional cakes, and for being the world’s oldest surviving republic. It is not, however, known for its soccer prowess.