Dumas Brothel Museum

The story

In 1890, French-Canadian brothers Joseph and Arthur Nadeau built a Victorian brick bordello on East Mercury Street and named it after Joseph's wife, Delia Dumas. While copper mining turned Butte into a roaring boomtown, the Dumas quietly serviced the city's massive workforce. What city leaders chose not to see, authorities eventually tolerated: the house operated continuously as a brothel for 92 years, outlasting municipal crackdowns and anti-vice laws to claim the longest continuous run of any brothel in U.S. history.

The building's architecture tells you exactly how the trade functioned across class lines. On the second floor, opulent parlor rooms and madams' quarters hosted wealthy clientele. Down in the unheated basement, miners passed through a claustrophobic maze of tiny, brick-walled 'cribs'—individual rooms with street-level windows and grates where budget encounters took place. That subterranean section was sealed off around 1943 during World War II, but the trade upstairs didn't cease until 1982, when authorities prosecuted the final madam, Ruby Garrett.

Because the building was never gutted or sanitized into boutique offices, you are looking at a raw capsule of Western social history—peeling wallpaper, original room layouts, and WWII-era furnishings left in place. That preserved, heavy atmosphere also fuels its second life: the Dumas carries a heavy reputation for paranormal activity, opening its dark hallways after hours for ticketed overnight ghost investigations.