After a little bit of quick planning on the night of our arrival, we decided to pay for a day ticket on a Tour Bus. It would help us get our bearings and it's a super convenient way to get around as it allows you to hop on/off wherever there is a stop. Our Air BnB was located about 10 minutes walk from the Sagrada Familia which is a residential district, further away from the hustle and bustle of the Gothic Quarter but it was a convenient location, quiet at night and safe. Since we were so close to the Sagrada familia, it was also one of the main stops for the bus. We got a quick glimpse of the awe inspiring cathedral (more on this soon) and hopped on the bus which took us north of Barcelona. The bus took us out of the central areas and we thought it was a great opportunity to explore areas we wouldn't necessarily see if it wasn't for the tour bus. We spotted something on the bus map that mentioned a castle (or as it turns out, Sagrat Cor Church). So we stopped and walked up a hill and found ourselves walking up Mount Tibidago (yes hello Friends reference!).
Afterwards, we hopped back on the bus and soon found ourselves on Avinguda Diagonal which is one of the main avenues in Barcelona. You'll find high end designer brands here but also some amazing architectural gems like Gaudi's Casa Mila which is also known as La Pedrera.