Barcelona, the cosmopolitan capital of Spain's Catalonia region, is defined by unique art and architecture, imaginative food and vibrant street life. It has medieval roots, seen in the mazelike Gothic Quarter, but a modernist personality represented by architect Antoni Gaudi's extraordinary Sagrada Familia cathedral. Its restaurant scene, anchored by the central Boqueria market, ranges from fine dining to tiny tapas bars. Cava, which translates to cave, is Spanish sparkling wine made in the "Traditional" or "Champagne Method" with second fermentation occurring in bottle, imparting a broad complexity of flavor. 95% of Cava is produced in the Penedès Region of Spain and holds DO certification.