Guaita is a round stone tower that looks like something straight out of a fairy tale. It was built at the very edge of a cliff, so the rock itself acts as an extra wall on one side. Walking up to it, you pass through an outer ring of old stone walls before reaching the tower itself.
Because it has been around for so long, Guaita has had many different uses over the centuries. For a long time it was the most important building for protecting the country. Later it became something else entirely: a place where people were kept safe while they waited for the courts to decide their situations. Today it is open for visitors to explore.
From the top of Guaita you get one of the best views in all of San Marino. The old cobblestone streets of the capital city wind down the hillside below you, and on a clear day the horizon stretches all the way to the coast of Italy.