The Central Market in the city of Valencia is a modernist style building and began to build in 1914 by Francesc Guàrdia i Vial and Alexandre Soler i March, both trained at the School of Architecture in Barcelona.
(
http://es.wikipedia.org/wiki/Mercado_Central_de_Valencia )
With about 8000 sq. meters, it is considered one of the biggest markets in Europe.