A stout granite building from 1832, the Charlotte County Gaol was the county jail until 1979 and is one of the oldest surviving purpose-built prisons in Canada. The stonework is excellent — thick walls of rough-cut grey granite quarried locally — and the interior preserves cell blocks and corridors substantially unaltered.
It is now a National Historic Site and houses a small museum about the county's legal and criminal history, open seasonally. Even when closed, the exterior is worth a look as you walk between the Ross Museum and Water Street: it gives the town an unexpected note of solidity among the timber-framed houses.