Explore the Gothic Quarter (Bari Gòtic neighborhood), which is made up of narrow, twisting streets and the perfect place to get lost. Fortunately the neighborhood is small and it is impossible to stay lost for too long, so enjoy the freedom. Dip down small alleys and come upon quiet squares enclosed by towering stone buildings.
The highlight of the Bari Gòtic is the Gothic Cathedral, which began construction in about 1300 and wasn't completed until the 1900s. This building is the symbol of Roman rule in Barcelona, in fact Barcino, Barcelona's Roman name, is spelled out in inlaid letters in front of the cathedral. Climb the narrow, spiraled staircase to the top and take in a bird's eye view of the city.