The park has 2 or 3 different entrances, so depending on where you are coming from one may be more convenient than another. There is a shuttle bus from the Alfons X metro stop that is included with your ticket purchase. You can walk about 20 minutes from the L3 line Lesseps or Vallcarca stops This is a beautiful park with sculptures, mosaics, and a path to the Three Crosses (Tres Creus) that gives an incredible view of the entire city. Some parts of the park are open with free admission, but other areas require ticket reservation. Each adult ticket is 10€ and availability depends on time of year.
Metro lines L2 or L5 to Sagrada Familia Tickets range from 17 to 32€ depending on access to special areas and the museum; there are also group options for 10+ people. Most Sundays they hold an international mass open to the public at 9am, check the website to confirm.
A home with multiple apartments within in that once housed a high school, built in the early 1900s for a bourgeoisie couple and designed by Antoni Gaudi Tickets 22-29€, but if you reserve early morning "awakening" tickets, they are free. Open 9am-8:30; night tours 9-11pm.
A 1.2km long stretch of a beautiful walkway with vendors, artists, and street performers. It spans from Plaça Catalunya to Port Vell (the old Barcelona port). La Boqueria is located on this main street. This is a busy tourist areas, so be vigilant of your belongings, especially large purses/bags and valuable items in your back pockets.
Via Metro L3 to Palau Reial or Les Corts, or L5 to Collblanc or Badal Two physical addresses: C/Arístides Mallol 12 (main Access 15) and Av. De Joan XVIII ( Boulevard Access 9) Pedestrian accesses: Access 9: Av. de Joan XXIII; Access 15: Av. Arístides Maillol; Access 15A: Av. Les Corts (Social Area access); Access 18: Av. Les Corts Tickets to view/tour facilities range from 26-149€ depending extent of the tour. The museum is across the way by the Hockey rink and Sports complex