44 Most Underrated Cities You Should Visit In Spain

33. Badajoz, Extremadura: Fortress on the Frontier

As the largest city in the often-overlooked region of Extremadura, Badajoz commands attention with its massive Alcazaba, one of the largest Moorish citadels in Spain, offering commanding views over the Guadiana River towards Portugal. Explore the historic Plaza Alta, admire the cathedral, and sense the city's frontier history. While less polished than some tourist favorites, Badajoz offers a glimpse into a powerful past and authentic Spanish life near the Portuguese border, rewarding those who venture off the main routes.