The city was really Stockholm and Rita sent this nice black & white card.
By the way, these stamps are just great.
"The Burgos Cathedral is a Gothic-style cathedral in Burgos. It is dedicated to the Virgin Mary and is famous for its vast size and unique architecture. Its construction began in 1221, following French Gothic parameters.
It had very important modifications in the 15th and 16th centuries (spires of the principal façade, Chapel of the Constable, cimborio of the transept: these elements of advanced Gothic give the cathedral its distinguished profile). The last works of importance occurred during the 18th century, the century in which the Gothic statuary of the doors of the principal façade was also dismantled completely. At the beginning of the 20th century, some semidetached construction to the cathedral was eliminated, such as the Archepiscopal Palace and the upper floor of the cloister. The style of the cathedral is Gothic, although it has some Renaissance and Baroque works.
The cathedral was declared a "World Heritage Site" by UNESCO on October 31 of 1984. It is the only Spanish cathedral that has this distinction independiently, without being joined to the historic center of a city (as in Salamanca, Santiago de Compostela, Ávila, Córdoba, Toledo or Cuenca) or in union with others buildings, as in Seville." - in: wikipedia