San Marino

San Marino is correct—the capital is the City of San Marino (Città di San Marino), perched on Mount Titano. The other options are not real capitals. This tiny enclave within Italy is one of the world’s oldest republics (traditionally founded in 301 CE), and its historic center with the Three Towers (Guaita, Cesta, Montale) is UNESCO-listed. Memory tip: some small countries share their name with their capital—San Marino = San Marino, like Luxembourg = Luxembourg. Picture the three hilltop fortresses guarding both the country and its namesake capital to lock it in.