Here are the best churches in Barcelona to visit ... making it one of the most famous monuments in Spain. Fun fact: 13 white geese live in the cloister (courtyard), honoring Saint Eulalia ...

The Barri Gòtic, or Gothic Quarter, sits at the heart of the Ciutat Vella – the oldest part of Barcelona – and ... see scars from the attack on the church in the square).

But the church wasn't always Gaudí's. The architect that was first commissioned to work on the Sagrada, Francisco de Paula del Villar, was replaced after disagreeing with its promoters.