Charles Street Jail / Liberty Hotel (repurposed subterranean jail spaces)

The Charles Street Jail, built in 1851 and converted into the Liberty Hotel which opened in the repurposed building in 2007, retains original jail architecture including former cell blocks and secure corridors that run below portions of the structure. The conversion preserved many underground and basement features of the 19th-century jail while adapting them for hotel use. The building is a documented example in Boston of an institutional facility with significant subterranean spaces reused for a modern purpose.