We will be in Barcelona on 8 until 11. Other than Sagrada and parc guell which sites r worth visiting? We HV 3 days. I hv few but want to know if all or few of them r must. Casa Batello,
We loved walking in the old town area, especially going Tapa’s bar hopping.
Here’s a site that might help : https://www.google.com/amp/s/www.onceinalifetimejourney.com/once-in-a-lifetime-journeys/europe/barcelona-itinerary-where-i-would-take-you-in-4-days/amp/
Different people consider different sights as "must see." Without knowing what appeals to you, I suggest you look over the suggested itineraries on this website and make decisions after that.