Saint Peter's BasilicaDespite its age (almost four hundred years old), the basilica remains one of the most significant monuments in the Catholic faith. Ralph Braumer / age fotostock;
From the edge of the Tiber, enter Vatican City via piazza Pius XII and on to via della Conciliazone. St Peter's Place opens in front of you, encircled by a double, elliptical shaped colonnade with an obelisk in the centre. Opposite you is the largest basilica in the world.