On Mount Etna volcano in Sicily, Italy, the Ferrovia Circumetnea is a small, narrow-gauge, old-world train that starts in the town of Catania. These historic cars have traveled between the hill towns on the volcano since 1898, and in present day, stop at Mount Etna’s various wineries. The train circles the volcano from the eastern to northern slopes, showing a landscape that changes from brightly colored flowers and citrus groves to barren, rocky, and lava-streaked fields. You can also traverse the volcano by jeep or on the back of a horse or donkey.
Experience it: Boundless Journeys' Ancient Sicily Hiking tour includes a hike across the lava fields from the 1983 Mount Etna eruption.