Casa Vicens is Gaudí's first house, and its green-and-white chequerboard tile climbs the brick and does not stop until the turret. The ornament came off the ground it stands on: marigolds growing on the plot became ceramic tiles, and the leaf of a dwarf fan palm was cast over and over into the iron railing. Inside, the rooms are small and almost no surface is left plain — ivy, cherries and birds painted up the dining-room walls and across the ceiling, a smoking room roofed in gilded papier-mâché, patterned tile underfoot.
Gaudí was in his early thirties and barely known when he drew it, working from engravings and photographic plates of Mudéjar brickwork and Islamic tile he had never seen in life. He set the result on a narrow lane in Gràcia, then still a town of its own, where Barcelona families kept summer houses. The Vicens family sold up within a generation, the next owners kept the house for more than a century, and it opened as a museum only in 2017 — the last of Gaudí's major houses to do so.