The Architecture of the Climb
These hairpin turns are a masterpiece of engineering. Carved directly into the steep cliffs, the road rises 1,000 meters through a dramatic section of sharp, geometric curves. This narrow path forces a slow, mindful drive, but the reward for navigating this structural wonder comes at the very top: the best sunset view in the entire region.
The Mailbox Origin
Long before cars, this route was built in the late 19th century as Montenegro’s main connection to the outside world. It was designed for horse carriages delivering mail and official state correspondence between the active port of Kotor and the old royal capital of Cetinje. These unique turns served as a precise visual guide for drivers tracking their altitude during the hard climb. The road’s postal legacy hit a historic milestone in 1903, when Montenegro became one of the first countries in the world to introduce motorized mail transport. A custom-built French automobile took over the route, driven by a young Montenegrin named Milo Tomanović, who braved the steep hairpins to deliver international mail faster than ever before.
The Famous 'M' Letter
The most beautiful feature of the road is a specific section with three sharp loops. When viewed from above, they form a perfect, giant letter "M". Legend says that the architect, Josip Slade, designed this layout as a secret love letter to the Montenegrin Princess Milena. Slade was deeply in love with her grace and beauty, but because she was married to Prince Nikola, he could never declare his feelings directly. Instead, he hid her initial in the mountain layout, ensuring his silent love would stay carved forever into the landscape. Local stories in Cetinje even joke that it was lucky the Princess's name didn't start with letter ‘O’, or the road would have never ended!
