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Photo: Fernando, CC BY-SA 4.0 via Wikimedia Commons
Neogothic bling-mansion built 1881-88 by Joan Martorell, with furniture by Gaudí. Its owner Antonio Lopez y López was first Marquess of Comillas and made his vast indiano fortune in Cuba. Highlights include the facade, the marble staircase, the throne room and the family chapel / mausoleum.
The Palacio de Sobrellano, also known as the Palace of the Marquess of Comillas, is a Neo-Gothic palace located in the town of Comillas, Cantabria, Spain. It was designed by Catalan architect Joan Martorell and built between 1881 and 1888 on the commission of Antonio López y López, the first Marquess of Comillas, one of the wealthiest men in 19th-century Spain. In 2002 both the palace and its adjacent chapel-pantheon were declared a Bien de Interés Cultural with the category of Monument.
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Summer chalet built 1883-85 by Antoni Gaudí in his "oriental" period - if the Persians had invented Art Nouveau it might look like this. It was a restaurant from 1988 to 2009 but is now a museum.