Barcelona is a reasonably large town. You are able to wander to many of the principal points of interest. But, when you’re in Barcelona for three days, you’ll finally end up needing transportation. Go ahead and take metro or taxis. As a UNESCO Planet Heritage-awarded effectiveness in 2010, flamenco at https://wearethelist.com/story20881103/the-fact-about-el-raval-barcelona-that-no-one-is-suggesting