I am planning a trip to Barcelona in May and have learned enough to know that I want to see the old parts of town, especially, if I can see some buildings that date back to Roman times. However, I am confused by the neighborhood designations seen on Trip Advisor and elsewhere. Are Cuitat Vella, El Born, and Barri Gotic basically the same in terms of architecture and amenities? Is one contained in the other (I saw one map that had Cuitat Vella as encompassing both El Born and Barri Gotic)?
To be more specific: If they are three different areas, what is unique about each one such that I may want to see all three? The other main question: is exploring both sides of La Rambla encouraged? I plan to explore the east side, but I am not sure what is on the west side that is worth seeing