If you turn off the main tourist areas of Barcelona, you can find some amazing architecture. Squares with little cafes, huge buildings and churches.
I admit I did get lost and felt like I was walking in circles, and I probably will never be able to find some of these places again, but I am glad that I have at least seen them.
There are so many gorgeous buildings in Barcelona that so many visitors never get to see and it is such a shame.
Get yourself a good map and explore.
You will be glad that you did.