Another beautiful basilica to visit while you are in the area.
Look for the sign from the cathedral (to your right as you face it) that points you to la rambla. It's about a ten minute walk, give or take.
Plaça del Rei
This plaza is also in the gothic area. It's absolutely beautiful
Plaça de Sant Felip Neri
This small plaza is a quiet place to rest and it has a museum.
Look for the Bishop's bridge in the gothic quarter of Barcelona, not far from the cathedral.
This plaza is just outside of the cathedral. Look for the letters showing what the Romans used to call Barcelona. There is also a scribbled artwork on a building that is a copy of a work by Pablo Picasso.
Pla de la Seu
This courtyard area is where you will find the cathedral.
It is 7 euro per adult to enter, kids are free. Bring exact change. Toilets are available in the court yard for .50 each person.
Barcelona is an amazing city! There is so much to do here, I highly recommend it.