North Macedonia is home to the oldest observatory in the Balkans, known as the "Kokino Observatory," dating back over 3,800 years.
North Macedonia is home to the stunning Matka Canyon, which features one of the deepest caves in the world, the Vrelo Cave, with an incredible underwater depth of around 724 feet (220 meters).
North Macedonia is home to one of the oldest and deepest lakes in Europe, Lake Ohrid, which is over three million years old and reaches a maximum depth of approximately 940 feet (286 meters).