Passetto di Borgo

The Passetto di Borgo was an eight-hundred metre long, elevated walkway through the centre of Rome, which connected the Capella Sistina with the Castel Sant'Angelo. In 1499, the Assassin Ezio Auditore da Firenze fought his way along the Passetto di Borgo in order to reach the Grand Master of the Templar Order, Rodrigo Borgia: Pope Alexander VI.

Trivia

 * In Assassin's Creed II the Passetto di Borgo is significantly larger, looking much more like a city wall, than the raised walkway it is in reality.
 * In Brotherhood, the Passetto di Borgo is an 'out-of-bound' area.