I love Barcelona. The fresh seafood, the cheap public transport (except the after-midnight crazyass expensive airport taxi to our B&B), the sunny weather... And of course the little incident that will forever mark this place as being special. (no I didn't poo my pants)
There's strolling down the busy La Rambla towards the port. And just sit at the marina and daydream the afternoon away. Or launch into an intelligent debate on why the bigger fish don't team up and attack a seagull.
The magical fountain of Montjuic (I had to wikipedia to find out that the name means Jewish Mountain. Duh.) where all your dreams come true! Or at least, you go aaaaaaaah.
Squids are a must-try when in Barcelona. Grilled, deepfried, whatever way they come in, try. I miss them so much, oh my chipirones.