Do some Gaudi things in Barcelona - in particular Palau Guell, Park Guell, Sagrada Familia and La Pedreda. Food is great everywhere.
Added: 15-06-2017 17:56:55
Paris - Musée du quai Branly (central) has an interesting Picasso exhibition on right now. Across the road Palais De Tokyo has some interesting stuff, and a cool Kodak camera booth. Cool record shops everywhere, in particular Betino's is great for interesting Japan related stuff (which I'm into). You get 2 for 1 for the cool Cezanne exhibition at the Musee D'Orsay if you go by Eurostar...
Added: 15-06-2017 18:25:50
For Paris (from my facebook recommendations):
Rideau de fer
And those are just the ones I can remember off the top of my head - there's plenty I haven't even been to. Check vinylhub as well.
Port de Clignancourt market. There is a guy in the outdoor part, I go to see him every time I'm there and he plays me all of his cool weird French electro and translates the dialogue for me. This guys is the nicest guy, he has literally spent hours digging out records he thinks I'll like. Go see him and tell him I sent you! He also introduced me to Zero Zero bar. It's a tiny little place with great music, all vinyl. The first drink it always 1euro extra to pay for the DJ. They do this killing cocktail for 3 euros. Massively recommend. x