For some people, this will be a kick: a hotel stay in a former Boston lockup. From 1851 to 1990, the soberly dramatic Charles Street Jail served as the detention facility for Suffolk County. In a first-rate example of historic preservation and urban reuse, renovations turned the facility into an unlikely luxury hotel while keeping distinctly jail-like features: heavy wrought-iron doors, a soaring inner atrium with cat walks lining the perimeter of upper floors, and a former “drunk tank” with barred windows that now houses the hotel bar, Alibi. A hidden courtyard once served as the exercise yard for prisoners. The location is a good one, at the base of the handsome Charles Street shopping destination and residential Beacon Hill. The on-site restaurant Scampo (Italian for “escape”) is helmed by esteemed chef-owner Lydia Shire.