On day 1, you'll visit 2 of my 3 favorite sights in Barcelona. Casa Batllo and Park Güell. Start the day by taking the metro to Casa Batlló. (Want a full guide to Casa Batllo click here) The house is a magnificent building, one you definitely can't miss. Inside, you can explore the many rooms, hallways, and staircases. There are many cool photo spots, next to the grand windows or in front of the mosaic walls. Wander to the rooftop to get a drink and have a look at all the colorful details.

Next, head out and walk to Casa Mila, maybe not as extravagant, but when you're in the area, definitely worth taking a look. You can go inside and see the indoor courtyards, apartments, and the rooftop.

Wander through the little streets toward Casa Vicens, and admire the architecture in between. I loved the details on this building, the geometric patterns, the iron wrought details, and just the trees surrounding the property. On this trip, we didn't go inside, but next time I'll definitely book some tickets to have a look at the courtyard and the spectacular interiors.

It's probably lunch time by now. There are some restaurants in the neighbourhood where you can eat, or wander a little further.

To 'end' the day, take the bus to Park Güell. (Read more about Park Güell here) There are many parts to this park, including the entrance with the famous stairs, benches, and the mosaic dragon. There are some homes 'hidden' between the trees, small waterfalls, and viaducts. You'll spend about 3 hours in the park, which will make it time for dinner at the end of your stroll.

Start your second day on the beach. Wander along the harbour towards Barceloneta Beach, where you can have a dip, sit on the sand, or have a little drink.

After that, take the bus to PG Colom, towards the Gothic Quarter. First, visit the old post office, pay attention to the detailed ceilings and floors. After wander the quaint streets, visit some local shops, and have a look at the ancient buildings in between. Start your wandering with a goal, and walk towards the other side of the neighbourhood, where you'll find the Cathedral of Barcelona. If you have time, have a look inside, but I personally didn't find the entree price worth it for what I could potentially see. Also, with this sight, I recommend you look up some images and decide for yourself. 

Have lunch somewhere in the Gothic Quarter. It's not authenic but I really enjoyed the bocadillas from el Pans. They have multiple locations all over Barcelona. After having lunch, head up to Mount Tibidabo to visit the Temple of the Sacred Heart of Jesus Christ. (Want to know more about the temple and how to get there? Read my in-depth guide here) At the summit, have a look at the Temple, and definitely don't miss the crypt, where you'll find beautiful mosaics telling a story. Up the stairs of the temple, you'll have a beautiful view of Barcelona. Done looking, get a drink from one of the stands up front, and once again admire the beautiful view.

End the day with a visit to Palau Nacional, where the Museu Nacional d'Art de Catalunya is housed. If you enjoy Catalan art from the Romanesque period, have a look at the vast collection of art displayed inside. If not, just have a look at the outside of the building. Next, take the escalators down and head over to the main streets for dinner.

After dinner, head back in the direction of the museum, and at 10 PM, there will be a show from the Magic Fountain of Montjuïc, with music and lights.

One of the things you can't miss, even though it ain't as spectacular as other things in Barcelona, is visiting La Rambla. When we went, the whole street was broken up, so that left even more to the imagination. From there, walk to Palau Güell. You can book tickets to go inside or just look at the facade. Take a few steps to the left or right of the building, and look up to the roof, where you'll see colorful mosaic chimneys. 

Slowly make your way over to Cituadella Park. For lunch today, get some supplies from a nearby (super)market, and have a picnic in the park. But be aware of the geese and ducks stealing your food. After finishing lunch, head over to the park's fountain. Take a short walk over to the Arc de Triomf, and take the metro at the other side, to head over to the Basílica de la Sagrada Família. When you arrive, head straight into the park to get the best overall view.  The cathedral is something you definitely can't miss visiting. There are so many beautiful and some questionable design choices. Such as the light reflections from the glass in the lead windows on the walls and floor, the ceiling details, and the grand pillars.

End the day with a nice last meal in Barcelona near the Sagrada Familia.