If there is one regret that I have about my trip to Barcelona, it's the fact that I did not get the chance to see the interior of the famed La Sagrada Familia, a monumental church dedicated to the Holy Family of Jesus, Mary, and Joseph. I know, I know...you are probably thinking what a big mistake that was because it's THAT one place you should NOT miss when in the city. It is considered Barcelona's crown jewel! Some even say it is practically illegal to go to Barcelona witho