Which country's flag features three towers?

Which country's flag features three towers? San Marino. Its national flag places the country’s coat of arms at the center, and that shield depicts three towers standing on three peaks.

The flag itself is a horizontal bicolour: white above light blue. White represents peace, while light blue represents liberty. Above the shield is a closed crown, and the emblem is framed by oak and laurel branches with a scroll bearing the word “Libertas,” Latin for “freedom.”

The three towers are Guaita, Cesta and Montale, built on the three summits of Monte Titano. Guaita is the oldest and most famous; Cesta stands on the highest peak and contains a weapons museum; Montale is the smallest and is not generally open to visitors.

A useful distinction is that the towers are not drawn directly across the entire flag. They appear within the central coat of arms on the official national flag. San Marino is also surrounded by Italy, making its three-tower emblem one of the clearest visual symbols of this tiny European republic.