The World's Smallest Castle is 1.8 meters tall - Apparently.
In the 19th century, Count Francesco Orsini built a miniature castle in the Italian town of Sirmione, near Lake Garda. The castle, known as "Il Castelletto," was constructed as a whimsical folly for the count's amusement. Measuring just 1.8 meters (5.9 feet) tall and 2.4 meters (7.9 feet) wide, it is recognized by Guinness World Records as the smallest castle in the world. Despite its tiny size, Il Castelletto is a remarkable example of the eccentricities of European aristocracy.