Kategori:Historiska distrikt i Middlesex County, Connecticut
Sidor i kategorin "Historiska distrikt i Middlesex County, Connecticut"
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- Main Street Historic District (Cromwell, Connecticut)
- Main Street Historic District (Durham, Connecticut)
- Main Street Historic District (Middletown, Connecticut)
- Marlborough Street Historic District
- Metro South Historic District
- Middle Haddam Historic District
- Middletown South Green Historic District
- Middletown Upper Houses Historic District
- Millington, Connecticut