I am so confused. OK, so I want to get from the Four Points Sheraton Diagonal to the Sagrada Familia. On the www.tmb.cat website it advises me to take the "BCTE - Barcelona City Tour - Ruta Est (Verda)" bus - what the heck is this? Is this this hop-on, hop-off bus that costs like 27 Euro pp? If so, I don't want it, and also, why is this appearing on the public transit website? Then, when I go to Google Maps and plug in the same route, it recommends the blue N7 route, which starts at "Diagonal - Rambla del Poblenou and ends at Marina - Av. Diagonal Service run by TUSGSAL" - but I can't find any mention of an N7 route on the tmb.cat website.
So...are these separate, but competing systems? What is the best way to get from that side of town (near the Glories metro stop) to Sagrada Familia? Why does Barcelona have to be so confusing!? Gah! Thanks for help!