davidsbeenhere.com/ Here David visits one of the most historical building in the Spanish city of Salamnaca. The casa de Las Conchas was built between 1493 to 1517 by Rodrigo Arias de Maldonado, a knight of the Order of Santiago de Compostela. The Building is built in a late Gothic and Plateresque style and it contains over 300 shells decorating its walls.