Mili (Catalan: Casa Trips), also known as La Pedrera, is the structure of the Eixample area (area "add-on") in Barcelona.
This unique structure, located in Passeig de Gracia 92, it was built by the architect Antoni Gaud? between the years 1906-1910.
It was built for Pere Trips I Camps and on his name the building is called.
In 1969 the building was declared as a national monument, and in 1984 UNESCO organization declared it as a designated world heritage site.