PSUC headquarters in Plaça Catalunya
The headquarters of the PSUC (Catalan Communist party) was in the then Hotel Colón in Plaça Catalunya. Note. portraits of Stalin and Lenin.
George Orwell describes the poistion of the Hotel Colón in Homage to Catalonia.
The people of Barcelona are so used to street-fighting and so familiar with the local geography that they knew by a kind of instinct which political party will hold which streets and which buildings. A foreigner is at a hopeless disadvantage. Looking out from the observatory, I could grasp that the Ramblas, which is one of the principal streets of the town, formed a dividing line. To the right of the Ramblas the working-class quarters were solidly Anarchist; to the left a confused fight was going on among the tortuous by-streets, but on that side the P.S.U.C. and the Civil Guards were more or less in control. Up at our end of the Ramblas, round the Plaza de Cataluna, the position was so complicated that it would have been quite unintelligible if every building had not flown a party flag. The principal landmark here was the Hotel Colon, the headquarters of the P.S.U.C., dominating the Plaza de Cataluna. In a window near the last 0 but one in the huge ‘Hotel Colon’ that sprawled across its face they had a machine-gun that could sweep the square with deadly effect. A hundred yards to the right of us, down the Ramblas, the J.S.U., the youth league of the P.S.U.C. (corresponding to the Young Communist League in England), were holding a big department store whose sandbagged side-windows fronted our observatory. They had hauled down their red flag and hoisted the Catalan national flag. On the Telephone Exchange, the starting-point of all the trouble, the Catalan national flag and the Anarchist flag were flying side by side. Some kind of temporary compromise had been arrived at there, the exchange was working uninterruptedly and there was no firing from the building. More here