So we had a few days in Barcelona and it was great. Nice and warm and lots going on. We stayed in the Vila de Gracia area and it was full of places to eat, small independent shops and even a design studio with a cool door and wall doodling outside. It's pretty close to the main areas in Barcelona too and the metro so would recommend.
There's loads of cool street art and architecture to check out. Gaudi central. All pretty cool and worth a look. If you want to go to Park Guell I would definitely book tickets in advance! They let a certain number in a day with time slots and the walk up is brutal if you end up waiting like 3 hours to get in. You can buy them online and have the ticket on your phone.
Also the design museum which covered pretty much all bases of design covered, furniture, ceramics, architecture, graphic design and fashion. Nice work, nice building and nice leaflets!
Cosmocaixa which had an awesome flooded rainforest and was only like 4euros so worth a peek! It's up some big hills but there's some nice views once you're up there too.
It's pretty easy to get around and if you can get a Barcelona travel card before it's worth doing. You'll have all access to all transport links even from the airport so that's the only thing you'll need. If you aren't there for long or just sticking to the metro you can get a 'T-10' ticket which means you get 10 trips.
That's about all the knowledge I can pass on an here's some stuffs for your enjoyment. Side note: Leave your selfie stick at home because you look fucking ridiculous.