The Crypt at La Sagrada Familia is where Gaudí is buried. It is not included in the cost of the Basilica's ticket, but we went first thing Sunday morning and got in free. (yay!) A congregation was gathering for a service, but the crypt is small so we were able to see it and scoot out before feeling rude.
The architecture down here is much more traditional than in the Basilica, although features and elements still lean towards the modernisme movement.
A little bit gothic, a little bit strange, but very interesting!
Now this is a fancy door!