Hidden Global Cities That Are Under the Radar but Full of Character

22. The Azores, Portugal – Europe’s Best-Kept Secret

Often overshadowed by mainland Portugal, the Azores are a volcanic paradise in the middle of the Atlantic. With emerald-green crater lakes, dramatic coastal cliffs, and natural hot springs, these islands feel like Hawaii meets Iceland—but without the crowds. Visitors can go whale watching, soak in geothermal pools, and explore volcanic caves and lush tea plantations. Each of the nine islands offers something different, from São Miguel’s vibrant crater lakes to Pico’s towering volcano. Best time to visit: April–October, with the best weather in June–September.