Calvert, United States Pin Oak Bed & Breakfast is situated in what is now part of a National Historic District. This grand two story home, which has a Texas Historical Marker, was built in 1900 and rests on a city block gently shaded by dozens of mature oak trees. Inside, 11 foot ceilings, spacious rooms with original detailed moldings, stained glass windows, five fireplaces, and two second floor balconies await your arrival.