Description: French Architect Hector Guimard encapsulates the short lived Art Nouveau style in his distinctive building, Castel Beranger. Completed in 1898, the structure's daring asymmetrical design still stands out today. What Gaudi brought to Barcelona, Guimard brought to Paris in this must see landmark. If you can't get inside the building for a special viewing of the interior, the engaging exterior is worth a visit.