New Orleans City Hall has been grappling with a mysterious odor that led to an evacuation and the closure of several offices, including the Bureaus of Revenue and Treasury. Initial fears of a gas leak were dismissed by fire department inspections, which revealed no such issues. While some city officials speculated the smell could be due to decomposing rodents, the city's rodent control agency ruled this out, although rumors persist about potential rat carcasses after extermination efforts. Employees reported varying experiences with the odor, which had reportedly dissipated by Friday. Investigations are ongoing to pinpoint the source of the smell as affected offices continue to operate remotely. This situation highlights ongoing issues with rodent infestations in the aging City Hall building.