Galveston's historic red-light district formed around Postoffice Street, particularly the blocks from roughly 25th to 29th streets, in a port city where shipping, tourism, gambling and nightlife created an unusually visible vice economy. The corridor became known as 'The Line' and expanded onto nearby downtown streets during the period remembered as Galveston's Open City era.
The surviving Mollie Walters House at 2528 Postoffice Street provides a rare physical link to that history. Galveston Historical Foundation identifies the 1886 building as having been constructed for use as a brothel and describes it as the last remnant of the historic red-light district. Its preservation makes the story visible in the modern streetscape without pretending the former district remains intact.
This history is best approached as part of Galveston's broader port-city development rather than as a novelty alone. Walking tours can add context about the people, businesses, policing and changing social attitudes that shaped the district, while nearby downtown architecture and museums help place 'The Line' alongside the commercial and civic history of the island.