As per Wikipedia, San Marino is "the only surviving medieval microstate in the Italian peninsula." Which is pretty cool. These microstate countries, including Andorra, Vatican City , Liechtenstein and Monaco, are fascinating. San Marino and the Titano Mount were designated as World Heritage by UNESCO in 2008.
San Marino's history dates back to 301 AD (in legend); the independent republic is 23.63 miles. It's exceptionally scenic, with most people visiting San Marino to see its beautiful castelli or castles dating to the 13th century.
As per one travel blog:
San Marino is a picture perfect town with a stunning setting. So, why don’t more people travel here? We are no different. In 2014, we spent almost one month in Italy and we didn’t even consider a visit to San Marino. It just doesn’t get the hype that other nearby destinations do (like Rome, Florence, and Venice). Maybe this is a good thing. For those in the know, fewer visitors makes strolling the city streets and enjoying the views from the towers a less crowded experience.
San Marino is a country that exceeded our expectations. It’s gorgeous, it’s fun to explore, the views over the vineyards of nearby Italy are breathtaking, and the food is delicious.
We visited in 2017, so we'll share some highlights from our trip. For example, the photograph and video included with this post is of the Passo Delle Streghe ("Witches' Staircase") that is a walkway between the first two of the three historic castles.