In Germany's largest wine region, Mainz unfolds like a delightful Riesling. Samantha explores the ruins of a Roman amphitheater near a main train station and visits Eva Vollmer Winery, learning about the "future wine" movement. She enjoys German wine at Weinhaus Loesch, then travels to Wiesbaden to taste hot chocolate at Kunder Chocolateria, a family-owned shop. At the Wiesbaden Museum, she admires the largest Art Nouveau collection.