On September 11th of 1714, the Bourbons took siege of Barcelona, signifying the start of the most turbulent period in the city’s history. The invaders began a barbaric campaign of oppression, disbanding all Catalan laws and institutions. This location which is now marked with a red monument was the burial site for those who fell during this period of misery. This was only uncovered when the buildings which occupied this space were demolished in 1989. The architect who uncovered this was called Carme Fiol. On uncovering the horrors beneath, he ordered the bricks which were laid down to be painted red, as a homage to the bloodshed bought by the bourbons. The striking red structure known as the Eternal Flame was installed around 2001 as a more permanent memorial. Today, September the 11th is known as the National Day of Catalonia of La Diada.