Still under construction El Temple Expiatori de la Sagada Família, was Antoni Gaudí's life work and obsession. The building is an iconic emblem of Barcelona, and volumes have been written about it, about the construction and there is much debate about when it will be finished. Entirely funded by tour ticket sales, the construction is moving right along. I'd say with in the next 20 years... Enjoy:

External link: Sagrada Família Official Site

El Temple Expiatori de la Sagada Família.
Barcelona, Espańa.
Antoni Gaudí.
Thanks to Aaron Sporer for some of the images.