A closer look

When your entire country is basically just a very famous church and a museum surrounded by walls, landing a Boeing 747 gets a bit tricky. The Vatican is a measly 109 acres, making an airport mathematically impossible unless the runway abruptly terminates directly into the Sistine Chapel. Visitors simply have to fly into Rome and walk across an invisible border, which is highly inconvenient for anyone hoping to rack up air miles directly from the Pope.