The Church of São Domingos was gutted by fire in 1959, and the damage was deliberately left in place. The columns are still red and cracked from the heat, the vault is still blackened, and the new gilding around the altar sits directly against the burnt stone. Two firemen died in that fire. The church reopened in 1994 looking as it does now, which is unlike any other church in Lisbon.
The Dominicans began building here in 1241, and this grew into the largest church in the city before the earthquake, and the one where kings married. It has been broken twice since. The earthquake of 1755 brought it down and it was rebuilt as though nothing had happened. The fire was not covered over, which is why a working parish church here looks like the inside of a burnt building. The 1506 killings began inside these walls as well, and the marker for those is out in the pavement, underfoot as you leave.