With the unification of Italy, Rome was chosen capital of the country in 1870. Nowadays, it is one of the most visited cities in the world. The unification process of Italy started in 1848 and ended with the creation of the Kingdom of Italy in 1861. Since Rome was under the control of the Papacy, Florence was made the temporary capital of Italy. In 1870, Italian troops entered Rome, ending more than one thousand years of Papal control over the city.

Source: Civitatis Rome