I took the hotel train from Granada to Barcelona, it took 12 hours to get to the final destination, and I shared a room on the train with 3 other people. The awesome part is that my roommates for the night were from Mexico City!
The train departed from Granada at 10:00 P.M. And it arrived to Barcelona at 9:45 A.M. I checked into the hotel around 10:15 A.M., and since that time I walked all around the city until 11:00 P.M.
I went to the Sagrada Familia, to the Picasso Museum, to the Cathedral, to the Gothic Quarter, to the Guadi Museum, and I took a long walk on the Passeig de Gracia where Guadi’s buildings are in each corner.
Today I walked all of Rambla Street; it is a touristic street that takes you to the ocean. Now, I am sitting in a nice little place drinking beer and enjoying the day (which I think that is one of the coolest days since I arrived in Spain).