For this trip, my friends and I stayed in an Airbnb that was quite close to Sagrada Familia, and the host had her brother meet us outside of the appartment to give us the keys and show us around the appartment. The home was kept very clean, had wifi, and was located near a few restaurants. There was a delicious bakery located right below with inexpensive pasteries and such. There are many inexpensive Airbnbs offered in Barcelona, so anything with a good location is perfect to stay in!
Click the link to view this Airbnb or explore others: Barcelona Airbnb
This place was absolutely amazing. The famous Antoni Gaudi took over this project in 1883, and it has amazed tourists ever since. The incredible architecture on the outside AND inside will leave you questioning how he ever did it. You're able to walk around as long as you would like and able to take a seat in the middle front of the church for a quick break. You can also take an elevator to the top for a price. Be sure to buy your tickets ahead of time on their website, and be ready to be amazed!
Click here to reserve your tickets ahead of time: Sagrada Familia Tickets
Park Guell is a must-see in Barcelona. Designed by Gaudi just like Sagrada Familia, it covers a vast area of land at the top of a hill. Be prepared to walk up a steep one in order to get here! However, the views are well worth the walk. In order to get into the more famous part with the colorful, tiled benches with a wonderful view of Barcelona, you must purchase tickets with a designated time. Before your time to enter, roaming around other areas of the park is free. There are many street vendors selling cheap souvenirs, but be careful because selling things inside the park is illegal, so they are always looking around to see if police are coming!
Click the link to buy tickets for Park Guell: Park Guell Tickets
For this place, my friends and I took a taxi that dropped us off and allowed us to take a few quick pictures then hop back in. Since we were not in tourist season, there were not many tours going on. But maybe in the summer this would be the better option.
Click the link to book a tour for the Olympic Stadium: Olympic Stadium Site