This restaurant is where Picasso had his first solo exhibit. We didn't eat there, but might just do that on our next trip to Barcelona. According to Wiki, it opened in 1897 and was a center of Modernisme http://en.wikipedia.org/wiki/Els_Quatre_Gats The picture on their board is titled "Ramon Casas and Pere Romeu on a Tandem," painted by Ramon Casas in 1897. I photographed the same scene in graffiti: