Spain Castile and Leon Avila

Known for its stunning fortified walls, this UNESCO World Heritage Site is full of medieval history as well as superb food.

This must-see Gothic cathedral doubled as the town's fortifications, housing numerous notable artworks.

Wander along the cobbled streets of the historic center, taking in the history, the local color, and lively cafes.

Founded in the 14C, this Romanesque basilica stands on the alleged site of St. Vincent's martyrdom and features his 12C tomb.

Erected in the 11C, these fortified walls are arguably the most grand in Europe and can be explored by walking the sentry path.

Established in the 15C, this monastery has much to explore with its cloisters, royal tombs, galleries, and more.

Home to the Military Archives, this 16C palace is the primary building in a complex that features numerous interesting venues.