The Trades Hall on Sulphide Street is one of the most important buildings in Australian labour history. Broken Hill's unions were the most militant in the country in the early 20th century, and the agreements they wrested from the mining companies — shorter hours, safer conditions, regular wages — became models for the rest of Australia.
The building still functions as a union hall and houses a small museum of labour history. The displays are modest but the place itself is unusually freighted with significance for what looks at first glance like an ordinary heritage building.