3.Malbork Castle

Malbork Castle, the largest brick fortress in the world built by the Teutonic Knights in the 13th century, stands as a masterpiece of medieval military architecture. This UNESCO World Heritage site is not only a testament to the craftsmanship and architectural prowess of the Teutonic Order but also serves as a vivid reminder of the turbulent history of the Baltic region. Visitors can explore its vast grounds, towering walls, and intricately designed interiors, which house an extensive collection of medieval weaponry, armor, and historical exhibits, offering a deep dive into the chivalric culture and the Crusader states in the Baltic.