Castillo de San Jorge

Beneath the cheerful Mercado de Triana — where locals buy their morning fish and tourists sample tapas — lie the excavated ruins of one of the most feared buildings in Spanish history. The Castillo de San Jorge served as the headquarters of the Spanish Inquisition in Seville from 1481 to 1785, more than three centuries during which suspected heretics, crypto-Jews, and conversos were arrested, interrogated, and sentenced within these walls. Many of them never left.

The Inquisition chose this location on the Triana side of the river deliberately: it was physically separated from the city center, making it easier to control who came and went. The castle's cells held prisoners who could wait years for trial, and those found guilty faced punishments ranging from public humiliation to being burned at the stake in an auto-da-fe ceremony. The first auto-da-fe in Seville took place on February 6, 1481, when six people were executed. Over the following decades, Seville's tribunal became one of the most active in Spain.

The castle was demolished in the nineteenth century, and the site lay buried under the market buildings until archaeologists excavated the foundations in the early 2000s. The free museum that now occupies the ruins is a sobering walk through the underground chambers, with interpretive panels that do not shy away from describing the torture methods and psychological terror the Inquisition employed. The juxtaposition of the sunny, food-filled market above and the grim ruins below is entirely intentional.

Look for the information panels that quote directly from Inquisition records — bureaucratic language describing unimaginable cruelty with the detached tone of an accounting ledger. It is a reminder that institutional evil often comes with meticulous paperwork.