[1] Home to the Frederick County Landmarks Foundation, the site is open to visitors on weekends from April through December as a local history and architectural museum.

The house stands on land settled by German immigrant farmers Josef and Cathrina Brunner (later alternately spelled 'Bruner' and 'Brooner') in 1736.

In 1758 Elias and his wife Albertina built the stone house that has stood for 260 years and today is a prized feature of Frederick’s early days.

Brunner died Feb 17, 1753, and the property ultimately went to his youngest son Elias, who clearly prospered enough to build the fairly large stone house that stands today.

Also called jamb stoves, these were parts of a clean, energy-efficient radiant heating system, fed by fireplaces in the center hall.

Much of the original construction and detailing survives, showing particular examples of German influence, including a narrow efficient staircase to the second floor.