Knights of Malta Keyhole

The Aventine Hill is the most expensive district in Rome, surrounded by important churches and monasteries. But what attracts tourists is one of the main must-see places, skipping the rest: the Knights of Malta keyhole at the Piazza dei Cavalieri di Malta. The square was designed in 1765 by the Italian architect Giovanni Battista Piranesi, and there you can find tourists waiting in line to see the keyhole. Visiting the Aventine Hill in Rome, the southernmost of Rome's seven hills, offers a calm retreat from the noisy city and the crowds. Here you can find not just one but several hidden gems of Rome, worthy of a bucket list. Steeped in ancient Roman history, the Aventine was home to the plebeians during the Republic.