Schifferstadt in Frederick, Maryland is considered haunted by the spirits of its original German settlers, the Brunner family, who built the historic German-Georgian colonial house in the 1750s. While visitors haven't reported any specific violent activity, experiences include hearing unexplained voices speaking in German and the sound of footsteps throughout the historic structure. The spirits are believed to be Joseph and Elias Brunner, the original German builders of the home. Visitors have claimed to hear unexplained voices speaking in the native German language of the Brunners. Footsteps have been reported moving through the house, suggesting a ghostly presence. Schifferstadt is the oldest standing house in Frederick and is an excellent example of German-Georgian colonial architecture. Built by the Brunner family in the mid-1750s, the house is named for their homeland in Germany and is a National Historic Landmark.