San Marino is a small, landlocked country located within the Italian peninsula. It is the third smallest country in Europe, after Vatican City and Monaco. The entire country is considered to be one city, and it is also the capital of the country. San Marino is known for its stunning medieval architecture, including the iconic Guaita Tower, which offers panoramic views of the surrounding countryside. The city is also home to the Palazzo Pubblico, a historic government building that houses the country's parliament and the famous frescoes by the artist Guercino.